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LDAPExtSampler.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package org.apache.jmeter.protocol.ldap.sampler;

import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;

import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.Attribute;
import javax.naming.directory.Attributes;
import javax.naming.directory.BasicAttribute;
import javax.naming.directory.BasicAttributes;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
import javax.naming.directory.ModificationItem;
import javax.naming.directory.SearchResult;

import org.apache.commons.lang.StringEscapeUtils;
import org.apache.jmeter.config.Argument;
import org.apache.jmeter.config.Arguments;
import org.apache.jmeter.engine.event.LoopIterationEvent;
import org.apache.jmeter.protocol.ldap.config.gui.LDAPArgument;
import org.apache.jmeter.protocol.ldap.config.gui.LDAPArguments;
import org.apache.jmeter.samplers.AbstractSampler;
import org.apache.jmeter.samplers.Entry;
import org.apache.jmeter.samplers.SampleResult;
import org.apache.jmeter.testelement.TestListener;
import org.apache.jmeter.testelement.property.PropertyIterator;
import org.apache.jmeter.testelement.property.StringProperty;
import org.apache.jmeter.testelement.property.TestElementProperty;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.logging.LoggingManager;
import org.apache.jorphan.util.XMLBuffer;
import org.apache.log.Logger;

/*******************************************************************************
 * Ldap Sampler class is main class for the LDAP test. This will control all the
 * test available in the LDAP Test.
 ******************************************************************************/

public class LDAPExtSampler extends AbstractSampler implements TestListener {

    private static final Logger log = LoggingManager.getLoggerForClass();

    /*
     * The following strings are used in the test plan, and the values must not be changed
     * if test plans are to be upwardly compatible.
     */
    public static final String SERVERNAME = "servername"; // $NON-NLS-1$

    public static final String PORT = "port"; // $NON-NLS-1$

    public static final String SECURE = "secure"; // $NON-NLS-1$

    public static final String ROOTDN = "rootdn"; // $NON-NLS-1$

    public static final String TEST = "test"; // $NON-NLS-1$

    // These are values for the TEST attribute above
    public static final String ADD = "add"; // $NON-NLS-1$

    public static final String MODIFY = "modify"; // $NON-NLS-1$

    public static final String BIND = "bind"; // $NON-NLS-1$

    public static final String UNBIND = "unbind"; // $NON-NLS-1$

    public static final String DELETE = "delete"; // $NON-NLS-1$

    public static final String SEARCH = "search"; // $NON-NLS-1$
    // end of TEST values

    public static final String SEARCHBASE = "search"; // $NON-NLS-1$

    public static final String SEARCHFILTER = "searchfilter"; // $NON-NLS-1$

    public static final String ARGUMENTS = "arguments"; // $NON-NLS-1$

    public static final String LDAPARGUMENTS = "ldaparguments"; // $NON-NLS-1$

    public static final String BASE_ENTRY_DN = "base_entry_dn"; // $NON-NLS-1$

    public static final String SCOPE = "scope"; // $NON-NLS-1$

    public static final String COUNTLIM = "countlimit"; // $NON-NLS-1$

    public static final String TIMELIM = "timelimit"; // $NON-NLS-1$

    public static final String ATTRIBS = "attributes"; // $NON-NLS-1$

    public static final String RETOBJ = "return_object"; // $NON-NLS-1$

    public static final String DEREF = "deref_aliases"; // $NON-NLS-1$

    public static final String USERDN = "user_dn"; // $NON-NLS-1$

    public static final String USERPW = "user_pw"; // $NON-NLS-1$

    public static final String SBIND = "sbind"; // $NON-NLS-1$

    public static final String COMPARE = "compare"; // $NON-NLS-1$

    public static final String CONNTO = "connection_timeout"; // $NON-NLS-1$

    public static final String COMPAREDN = "comparedn"; // $NON-NLS-1$

    public static final String COMPAREFILT = "comparefilt"; // $NON-NLS-1$

    public static final String PARSEFLAG = "parseflag"; // $NON-NLS-1$

    public static final String RENAME = "rename"; // $NON-NLS-1$

    public static final String MODDDN = "modddn"; // $NON-NLS-1$

    public static final String NEWDN = "newdn"; // $NON-NLS-1$

    private static final String SEMI_COLON = ";"; // $NON-NLS-1$


    private static final Hashtable ldapConnections = new Hashtable();

    private static final Hashtable ldapContexts = new Hashtable();

    private static final int MAX_SORTED_RESULTS =
        JMeterUtils.getPropDefault("ldapsampler.max_sorted_results", 1000); // $NON-NLS-1$

    /***************************************************************************
     * !ToDo (Constructor description)
     **************************************************************************/
    public LDAPExtSampler() {
    }

    public void setConnTimeOut(String connto) {
        setProperty(new StringProperty(CONNTO, connto));
    }

    public String getConnTimeOut() {
        return getPropertyAsString(CONNTO);
    }

    public void setSecure(String sec) {
        setProperty(new StringProperty(SECURE, sec));
    }

    public boolean isSecure() {
        return getPropertyAsBoolean(SECURE);
    }


    public boolean isParseFlag() {
        return getPropertyAsBoolean(PARSEFLAG);
    }

    public void setParseFlag(String parseFlag) {
        setProperty(new StringProperty(PARSEFLAG, parseFlag));
    }

    /***************************************************************************
     * Gets the username attribute of the LDAP object
     *
     * @return The username
     **************************************************************************/

    public String getUserDN() {
        return getPropertyAsString(USERDN);
    }

    /***************************************************************************
     * Sets the username attribute of the LDAP object
     *
     **************************************************************************/

    public void setUserDN(String newUserDN) {
        setProperty(new StringProperty(USERDN, newUserDN));
    }

    /***************************************************************************
     * Gets the password attribute of the LDAP object
     *
     * @return The password
     **************************************************************************/

    public String getUserPw() {
        return getPropertyAsString(USERPW);
    }

    /***************************************************************************
     * Sets the password attribute of the LDAP object
     *
     **************************************************************************/

    public void setUserPw(String newUserPw) {
        setProperty(new StringProperty(USERPW, newUserPw));
    }

    /***************************************************************************
     * Sets the Servername attribute of the ServerConfig object
     *
     * @param servername
     *            The new servername value
     **************************************************************************/
    public void setServername(String servername) {
        setProperty(new StringProperty(SERVERNAME, servername));
    }

    /***************************************************************************
     * Sets the Port attribute of the ServerConfig object
     *
     * @param port
     *            The new Port value
     **************************************************************************/
    public void setPort(String port) {
        setProperty(new StringProperty(PORT, port));
    }

    /***************************************************************************
     * Gets the servername attribute of the LDAPSampler object
     *
     * @return The Servername value
     **************************************************************************/

    public String getServername() {
        return getPropertyAsString(SERVERNAME);
    }

    /***************************************************************************
     * Gets the Port attribute of the LDAPSampler object
     *
     * @return The Port value
     **************************************************************************/

    public String getPort() {
        return getPropertyAsString(PORT);
    }

    /***************************************************************************
     * Sets the Rootdn attribute of the LDAPSampler object
     *
     * @param newRootdn
     *            The new rootdn value
     **************************************************************************/
    public void setRootdn(String newRootdn) {
        this.setProperty(ROOTDN, newRootdn);
    }

    /***************************************************************************
     * Gets the Rootdn attribute of the LDAPSampler object
     *
     * @return The Rootdn value
     **************************************************************************/
    public String getRootdn() {
        return getPropertyAsString(ROOTDN);
    }

    /***************************************************************************
     * Gets the search scope attribute of the LDAPSampler object
     *
     * @return The scope value
     **************************************************************************/
    public String getScope() {
        return getPropertyAsString(SCOPE);
    }

    public int getScopeAsInt() {
        return getPropertyAsInt(SCOPE);
    }

    /***************************************************************************
     * Sets the search scope attribute of the LDAPSampler object
     *
     * @param newScope
     *            The new scope value
     **************************************************************************/
    public void setScope(String newScope) {
        this.setProperty(SCOPE, newScope);
    }

    /***************************************************************************
     * Gets the size limit attribute of the LDAPSampler object
     *
     * @return The size limit
     **************************************************************************/
    public String getCountlim() {
        return getPropertyAsString(COUNTLIM);
    }

    public long getCountlimAsLong() {
        return getPropertyAsLong(COUNTLIM);
    }

    /***************************************************************************
     * Sets the size limit attribute of the LDAPSampler object
     *
     * @param newClim
     *            The new size limit value
     **************************************************************************/
    public void setCountlim(String newClim) {
        this.setProperty(COUNTLIM, newClim);
    }

    /***************************************************************************
     * Gets the time limit attribute of the LDAPSampler object
     *
     * @return The time limit
     **************************************************************************/
    public String getTimelim() {
        return getPropertyAsString(TIMELIM);
    }

    public int getTimelimAsInt() {
        return getPropertyAsInt(TIMELIM);
    }

    /***************************************************************************
     * Sets the time limit attribute of the LDAPSampler object
     *
     * @param newTlim
     *            The new time limit value
     **************************************************************************/
    public void setTimelim(String newTlim) {
        this.setProperty(TIMELIM, newTlim);
    }

    /***************************************************************************
     * Gets the return objects attribute of the LDAPSampler object
     *
     * @return if the object(s) are to be returned
     **************************************************************************/
    public boolean isRetobj() {
        return getPropertyAsBoolean(RETOBJ);
    }

    /***************************************************************************
     * Sets the return objects attribute of the LDAPSampler object
     *
     **************************************************************************/
    public void setRetobj(String newRobj) {
        this.setProperty(RETOBJ, newRobj);
    }

    /***************************************************************************
     * Gets the deref attribute of the LDAPSampler object
     *
     * @return if dereferencing is required
     **************************************************************************/
    public boolean isDeref() {
        return getPropertyAsBoolean(DEREF);
    }

    /***************************************************************************
     * Sets the deref attribute of the LDAPSampler object
     *
     * @param newDref
     *            The new deref value
     **************************************************************************/
    public void setDeref(String newDref) {
        this.setProperty(DEREF, newDref);
    }

    /***************************************************************************
     * Sets the Test attribute of the LdapConfig object
     *
     * @param newTest
     *            The new test value(Add,Modify,Delete and search)
     **************************************************************************/
    public void setTest(String newTest) {
        this.setProperty(TEST, newTest);
    }

    /***************************************************************************
     * Gets the test attribute of the LDAPSampler object
     *
     * @return The test value (Add,Modify,Delete and search)
     **************************************************************************/
    public String getTest() {
        return getPropertyAsString(TEST);
    }

    /***************************************************************************
     * Sets the attributes of the LdapConfig object
     *
     * @param newAttrs
     *            The new attributes value
     **************************************************************************/
    public void setAttrs(String newAttrs) {
        this.setProperty(ATTRIBS, newAttrs);
    }

    /***************************************************************************
     * Gets the attributes of the LDAPSampler object
     *
     * @return The attributes
     **************************************************************************/
    public String getAttrs() {
        return getPropertyAsString(ATTRIBS);
    }

    /***************************************************************************
     * Sets the Base Entry DN attribute of the LDAPSampler object
     *
     * @param newbaseentry
     *            The new Base entry DN value
     **************************************************************************/
    public void setBaseEntryDN(String newbaseentry) {
        setProperty(new StringProperty(BASE_ENTRY_DN, newbaseentry));
    }

    /***************************************************************************
     * Gets the BaseEntryDN attribute of the LDAPSampler object
     *
     * @return The Base entry DN value
     **************************************************************************/
    public String getBaseEntryDN() {
        return getPropertyAsString(BASE_ENTRY_DN);
    }

    /***************************************************************************
     * Sets the Arguments attribute of the LdapConfig object This will collect
     * values from the table for user defined test case
     *
     * @param value
     *            The arguments
     **************************************************************************/
    public void setArguments(Arguments value) {
        setProperty(new TestElementProperty(ARGUMENTS, value));
    }

    /***************************************************************************
     * Gets the Arguments attribute of the LdapConfig object
     *
     * @return The arguments user defined test case
     **************************************************************************/
    public Arguments getArguments() {
        return (Arguments) getProperty(ARGUMENTS).getObjectValue();
    }

    /***************************************************************************
     * Sets the Arguments attribute of the LdapConfig object This will collect
     * values from the table for user defined test case
     *
     * @param value
     *            The arguments
     **************************************************************************/
    public void setLDAPArguments(LDAPArguments value) {
        setProperty(new TestElementProperty(LDAPARGUMENTS, value));
    }

    /***************************************************************************
     * Gets the LDAPArguments attribute of the LdapConfig object
     *
     * @return The LDAParguments user defined modify test case
     **************************************************************************/
    public LDAPArguments getLDAPArguments() {
        return (LDAPArguments) getProperty(LDAPARGUMENTS).getObjectValue();
    }

    /***************************************************************************
     * Collect all the values from the table (Arguments), using this create the
     * Attributes, this will create the Attributes for the User
     * defined TestCase for Add Test
     *
     * @return The Attributes
     **************************************************************************/
    private Attributes getUserAttributes() {
        Attributes attrs = new BasicAttributes(true);
        Attribute attr;
        PropertyIterator iter = getArguments().iterator();

        while (iter.hasNext()) {
            Argument item = (Argument) iter.next().getObjectValue();
            attr = attrs.get(item.getName());
            if (attr == null) {
                attr = getBasicAttribute(item.getName(), item.getValue());
            } else {
                attr.add(item.getValue());
            }
            attrs.put(attr);
        }
        return attrs;
    }

    /***************************************************************************
     * Collect all the value from the table (Arguments), using this create the
     * basicAttributes This will create the Basic Attributes for the User
     * defined TestCase for Modify test
     *
     * @return The BasicAttributes
     **************************************************************************/
    private ModificationItem[] getUserModAttributes() {
        ModificationItem[] mods = new ModificationItem[getLDAPArguments().getArguments().size()];
        BasicAttribute attr;
        PropertyIterator iter = getLDAPArguments().iterator();
        int count = 0;
        while (iter.hasNext()) {
            LDAPArgument item = (LDAPArgument) iter.next().getObjectValue();
            if ((item.getValue()).length()==0) {
                attr = new BasicAttribute(item.getName());
            } else {
                attr = getBasicAttribute(item.getName(), item.getValue());
            }

            final String opcode = item.getOpcode();
            if ("add".equals(opcode)) { // $NON-NLS-1$
                mods[count++] = new ModificationItem(DirContext.ADD_ATTRIBUTE, attr);
            } else if ("delete".equals(opcode) // $NON-NLS-1$
                   ||  "remove".equals(opcode)) { // $NON-NLS-1$
                    mods[count++] = new ModificationItem(DirContext.REMOVE_ATTRIBUTE, attr);
            } else if("replace".equals(opcode)) { // $NON-NLS-1$
                    mods[count++] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, attr);
            } else {
                    log.warn("Invalid opCode: "+opcode);
            }
        }
        return mods;
    }

    /***************************************************************************
     * Collect all the value from the table (Arguments), using this create the
     * Attributes This will create the Basic Attributes for the User defined
     * TestCase for search test
     *
     * @return The BasicAttributes
     **************************************************************************/
    private String[] getRequestAttributes(String reqAttr) {
        int index;
        String[] mods;
        int count = 0;
        if (reqAttr.length() == 0) {
            return null;
        }
        if (!reqAttr.endsWith(SEMI_COLON)) {
            reqAttr = reqAttr + SEMI_COLON;
        }
        String attr = reqAttr;

        while (attr.length() > 0) {
            index = attr.indexOf(SEMI_COLON);
            count += 1;
            attr = attr.substring(index + 1);
        }
        if (count > 0) {
            mods = new String[count];
            attr = reqAttr;
            count = 0;
            while (attr.length() > 0) {
                index = attr.indexOf(SEMI_COLON);
                mods[count] = attr.substring(0, index);
                count += 1;
                attr = attr.substring(index + 1);
            }
        } else {
            mods = null;
        }
        return mods;
    }

    /***************************************************************************
     * This will create the Basic Attribute for the give name value pair
     *
     * @return The BasicAttribute
     **************************************************************************/
    private BasicAttribute getBasicAttribute(String name, String value) {
        BasicAttribute attr = new BasicAttribute(name, value);
        return attr;
    }

    /**
     * Returns a formatted string label describing this sampler Example output:
     *
     * @return a formatted string label describing this sampler
     */
    public String getLabel() {
        return ("ldap://" + this.getServername()  //$NON-NLS-1$
                + ":" + getPort()                 //$NON-NLS-1$
                + "/" + this.getRootdn());        //$NON-NLS-1$
    }

    /***************************************************************************
     * This will do the add test for the User defined TestCase
     *
     **************************************************************************/
    private void addTest(LdapExtClient ldap, DirContext dirContext, SampleResult res) throws NamingException {
        try {
            res.sampleStart();
            ldap.createTest(dirContext, getUserAttributes(), getBaseEntryDN());
        } finally {
            res.sampleEnd();
        }
    }

    /***************************************************************************
     * This will do the delete test for the User defined TestCase
     *
     **************************************************************************/
    private void deleteTest(LdapExtClient ldap, DirContext dirContext, SampleResult res) throws NamingException {
        try {
            res.sampleStart();
            ldap.deleteTest(dirContext, getPropertyAsString(DELETE));
        } finally {
            res.sampleEnd();
        }
    }

    /***************************************************************************
     * This will do the modify test for the User defined TestCase
     *
     **************************************************************************/
    private void modifyTest(LdapExtClient ldap, DirContext dirContext, SampleResult res) throws NamingException {
        try {
            res.sampleStart();
            ldap.modifyTest(dirContext, getUserModAttributes(), getBaseEntryDN());
        } finally {
            res.sampleEnd();
        }
    }

    /***************************************************************************
     * This will do the bind for the User defined Thread, this bind is used for
     * the whole context
     *
     **************************************************************************/
    private void bindOp(LdapExtClient ldap, DirContext dirContext, SampleResult res) throws NamingException {
        DirContext ctx = (DirContext) ldapContexts.remove(getThreadName());
        if (ctx != null) {
            log.warn("Closing previous context for thread: " + getThreadName());
            ctx.close();
        }
        try {
            res.sampleStart();
            ctx = ldap.connect(getServername(), getPort(), getRootdn(), getUserDN(), getUserPw(),getConnTimeOut(),isSecure());
        } finally {
            res.sampleEnd();
        }
        ldapContexts.put(getThreadName(), ctx);
    }

    /***************************************************************************
     * This will do the bind and unbind for the User defined TestCase
     *
     **************************************************************************/
    private void singleBindOp(SampleResult res) throws NamingException {
        LdapExtClient ldap_temp;
        ldap_temp = new LdapExtClient();
        try {
            res.sampleStart();
            DirContext ctx = ldap_temp.connect(getServername(), getPort(), getRootdn(), getUserDN(), getUserPw(),getConnTimeOut(),isSecure());
            ldap_temp.disconnect(ctx);
        } finally {
            res.sampleEnd();
        }
    }

    /***************************************************************************
     * This will do a moddn Opp for the User new DN defined
     *
     **************************************************************************/
    private void renameTest(LdapExtClient ldap, DirContext dirContext, SampleResult res) throws NamingException {
        try {
            res.sampleStart();
            ldap.moddnOp(dirContext, getPropertyAsString(MODDDN), getPropertyAsString(NEWDN));
        } finally {
            res.sampleEnd();
        }
    }

    /***************************************************************************
     * This will do the unbind for the User defined TestCase as well as inbuilt
     * test case
     *
     **************************************************************************/
    private void unbindOp(LdapExtClient ldap, DirContext dirContext, SampleResult res) {
        try {
            res.sampleStart();
            ldap.disconnect(dirContext);
        } finally {
            res.sampleEnd();
        }
        ldapConnections.remove(getThreadName());
        ldapContexts.remove(getThreadName());
        log.info("context and LdapExtClients removed");
    }

    /***************************************************************************
     * !ToDo (Method description)
     *
     * @param e
     *            !ToDo (Parameter description)
     * @return !ToDo (Return description)
     **************************************************************************/
    public SampleResult sample(Entry e) {
        XMLBuffer xmlBuffer = new XMLBuffer();
        xmlBuffer.openTag("ldapanswer"); // $NON-NLS-1$
        SampleResult res = new SampleResult();
        res.setResponseData("successfull".getBytes());
        res.setResponseMessage("Success"); // $NON-NLS-1$
        res.setResponseCode("0"); // $NON-NLS-1$
        res.setContentType("text/xml");// $NON-NLS-1$
        boolean isSuccessful = true;
        res.setSampleLabel(getName());
        LdapExtClient temp_client = (LdapExtClient) ldapConnections.get(getThreadName());
        DirContext dirContext = (DirContext) ldapContexts.get(getThreadName());
        if (temp_client == null) {
            temp_client = new LdapExtClient();
            try {
                dirContext = new InitialDirContext();
            } catch (NamingException err) {
                log.error("Ldap client context creation - ", err);
            }
            ldapConnections.put(getThreadName(), temp_client);
        }

        try {
            xmlBuffer.openTag("operation"); // $NON-NLS-1$
            final String testType = getTest();
            xmlBuffer.tag("opertype", testType); // $NON-NLS-1$
            log.debug("performing test: " + testType);
            if (testType.equals(UNBIND)) {
                res.setSamplerData("Unbind");
                xmlBuffer.tag("baseobj",getRootdn()); // $NON-NLS-1$
                xmlBuffer.tag("binddn",getUserDN()); // $NON-NLS-1$
                unbindOp(temp_client, dirContext, res);
            } else if (testType.equals(BIND)) {
                res.setSamplerData("Bind as "+getUserDN());
                xmlBuffer.tag("baseobj",getRootdn()); // $NON-NLS-1$
                xmlBuffer.tag("binddn",getUserDN()); // $NON-NLS-1$
                xmlBuffer.tag("connectionTO",getConnTimeOut()); // $NON-NLS-1$
                bindOp(temp_client, dirContext, res);
            } else if (testType.equals(SBIND)) {
                res.setSamplerData("SingleBind as "+getUserDN());
                xmlBuffer.tag("baseobj",getRootdn()); // $NON-NLS-1$
                xmlBuffer.tag("binddn",getUserDN()); // $NON-NLS-1$
                xmlBuffer.tag("connectionTO",getConnTimeOut()); // $NON-NLS-1$
                singleBindOp(res);
            } else if (testType.equals(COMPARE)) {
                res.setSamplerData("Compare "+getPropertyAsString(COMPAREFILT) + " "
                                + getPropertyAsString(COMPAREDN));
                xmlBuffer.tag("comparedn",getPropertyAsString(COMPAREDN)); // $NON-NLS-1$
                xmlBuffer.tag("comparefilter",getPropertyAsString(COMPAREFILT)); // $NON-NLS-1$
                NamingEnumeration cmp=null;
                try {
                    res.sampleStart();
                    cmp = temp_client.compare(dirContext, getPropertyAsString(COMPAREFILT),
                            getPropertyAsString(COMPAREDN));
                    if (!cmp.hasMore()) {
                        res.setResponseCode("5"); // $NON-NLS-1$
                        res.setResponseMessage("compareFalse");
                        isSuccessful = false;
                    }
                } finally {
                    res.sampleEnd();
                    if (cmp != null) {
                        cmp.close();
                    }
                }
            } else if (testType.equals(ADD)) {
                res.setSamplerData("Add object " + getBaseEntryDN());
                xmlBuffer.tag("attributes",getArguments().toString()); // $NON-NLS-1$
                xmlBuffer.tag("dn",getBaseEntryDN()); // $NON-NLS-1$
                addTest(temp_client, dirContext, res);
            } else if (testType.equals(DELETE)) {
                res.setSamplerData("Delete object " + getBaseEntryDN());
                xmlBuffer.tag("dn",getBaseEntryDN()); // $NON-NLS-1$
                deleteTest(temp_client, dirContext, res);
            } else if (testType.equals(MODIFY)) {
                res.setSamplerData("Modify object " + getBaseEntryDN());
                xmlBuffer.tag("dn",getBaseEntryDN()); // $NON-NLS-1$
                xmlBuffer.tag("attributes",getLDAPArguments().toString()); // $NON-NLS-1$
                modifyTest(temp_client, dirContext, res);
            } else if (testType.equals(RENAME)) {
                res.setSamplerData("ModDN object " + getPropertyAsString(MODDDN) + " to " + getPropertyAsString(NEWDN));
                xmlBuffer.tag("dn",getPropertyAsString(MODDDN)); // $NON-NLS-1$
                xmlBuffer.tag("newdn",getPropertyAsString(NEWDN)); // $NON-NLS-1$
                renameTest(temp_client, dirContext, res);
            } else if (testType.equals(SEARCH)) {
                final String            scopeStr = getScope();
                final int               scope = getScopeAsInt();
                final String searchFilter = getPropertyAsString(SEARCHFILTER);
                final String searchBase = getPropertyAsString(SEARCHBASE);
                final String timeLimit = getTimelim();
                final String countLimit = getCountlim();

                res.setSamplerData("Search with filter " + searchFilter);
                xmlBuffer.tag("searchfilter",searchFilter); // $NON-NLS-1$
                xmlBuffer.tag("baseobj",getRootdn()); // $NON-NLS-1$
                xmlBuffer.tag("searchbase",searchBase);// $NON-NLS-1$
                xmlBuffer.tag("scope" , scopeStr); // $NON-NLS-1$
                xmlBuffer.tag("countlimit",countLimit); // $NON-NLS-1$
                xmlBuffer.tag("timelimit",timeLimit); // $NON-NLS-1$

                NamingEnumeration srch=null;
                try {
                    res.sampleStart();
                    srch = temp_client.searchTest(
                            dirContext, searchBase, searchFilter,
                            scope, getCountlimAsLong(),
                            getTimelimAsInt(),
                            getRequestAttributes(getAttrs()),
                            isRetobj(),
                            isDeref());
                    if (isParseFlag()) {
                        try {
                            xmlBuffer.openTag("searchresults"); // $NON-NLS-1$
                            writeSearchResults(xmlBuffer, srch);
                        } finally {
                            xmlBuffer.closeTag("searchresults"); // $NON-NLS-1$
                        }
                    } else {
                        xmlBuffer.tag("searchresults", // $NON-NLS-1$
                                "hasElements="+srch.hasMoreElements()); // $NON-NLS-1$
                    }
                } finally {
                    if (srch != null){
                        srch.close();
                    }
                    res.sampleEnd();
                }

            }

        } catch (NamingException ex) {
            //log.warn("DEBUG",ex);
// e.g. javax.naming.SizeLimitExceededException: [LDAP: error code 4 - Sizelimit Exceeded]; remaining name ''
//                                                123456789012345678901
            // TODO: tidy this up
            String returnData = ex.toString();
            final int indexOfLDAPErrCode = returnData.indexOf("LDAP: error code");
            if (indexOfLDAPErrCode >= 0) {
                res.setResponseMessage(returnData.substring(indexOfLDAPErrCode + 21, returnData
                        .indexOf("]"))); // $NON-NLS-1$
                res.setResponseCode(returnData.substring(indexOfLDAPErrCode + 17, indexOfLDAPErrCode + 19));
            } else {
                res.setResponseMessage(returnData);
                res.setResponseCode("800"); // $NON-NLS-1$
            }
            isSuccessful = false;
        } finally {
            xmlBuffer.closeTag("operation"); // $NON-NLS-1$
            xmlBuffer.tag("responsecode",res.getResponseCode()); // $NON-NLS-1$
            xmlBuffer.tag("responsemessage",res.getResponseMessage()); // $NON-NLS-1$
            res.setResponseData(xmlBuffer.toString().getBytes());
            res.setDataType(SampleResult.TEXT);
            res.setSuccessful(isSuccessful);
        }
        return res;
    }

    /*
     *   Write out search results in a stable order (including order of all subelements which might
     * be reordered like attributes and their values) so that simple textual comparison can be done,
     * unless the number of results exceeds {@link #MAX_SORTED_RESULTS} in which case just stream
     * the results out without sorting.
     */
    private void writeSearchResults(final XMLBuffer xmlb, final NamingEnumeration srch)
            throws NamingException
    {

        final ArrayList     sortedResults = new ArrayList(MAX_SORTED_RESULTS);
        final String        searchBase = getPropertyAsString(SEARCHBASE);
        final String        rootDn = getRootdn();

        // read all sortedResults into memory so we can guarantee ordering
        try {
            while (srch.hasMore() && (sortedResults.size() < MAX_SORTED_RESULTS)) {
                final SearchResult    sr = (SearchResult) srch.next();

                    // must be done prior to sorting
                normaliseSearchDN(sr, searchBase, rootDn);
                sortedResults.add(sr);
            }
        } finally { // show what we did manage to retrieve

            sortResults(sortedResults);

            for (Iterator it = sortedResults.iterator(); it.hasNext();)
            {
                final SearchResult  sr = (SearchResult) it.next();
                writeSearchResult(sr, xmlb);
            }
        }

        while (srch.hasMore()) { // If there's anything left ...
            final SearchResult    sr = (SearchResult) srch.next();

            normaliseSearchDN(sr, searchBase, rootDn);
            writeSearchResult(sr, xmlb);
        }
    }

    private void writeSearchResult(final SearchResult sr, final XMLBuffer xmlb)
            throws NamingException
    {
        final Attributes    attrs = sr.getAttributes();
        final int           size = attrs.size();
        final ArrayList     sortedAttrs = new ArrayList(size);

        xmlb.openTag("searchresult"); // $NON-NLS-1$
        xmlb.tag("dn", sr.getName()); // $NON-NLS-1$
         xmlb.tag("returnedattr",Integer.toString(size)); // $NON-NLS-1$
         xmlb.openTag("attributes"); // $NON-NLS-1$

         try {
            for (NamingEnumeration en = attrs.getAll(); en.hasMore(); )
            {
                final Attribute     attr = (Attribute) en.next();

                sortedAttrs.add(attr);
            }
            sortAttributes(sortedAttrs);
            for (Iterator ait = sortedAttrs.iterator(); ait.hasNext();)
            {
                final Attribute     attr = (Attribute) ait.next();

                StringBuffer sb = new StringBuffer();
                if (attr.size() == 1) {
                    sb.append(getWriteValue(attr.get()));
                } else {
                    final ArrayList     sortedVals = new ArrayList(attr.size());
                    boolean             first = true;

                    for (NamingEnumeration ven = attr.getAll(); ven.hasMore(); )
                    {
                        final Object    value = getWriteValue(ven.next());
                        sortedVals.add(value.toString());
                    }

                    Collections.sort(sortedVals);

                    for (Iterator vit = sortedVals.iterator(); vit.hasNext();)
                    {
                        final String    value = (String) vit.next();
                        if (first) {
                            first = false;
                        } else {
                            sb.append(", "); // $NON-NLS-1$
                        }
                        sb.append(value);
                    }
                }
                xmlb.tag(attr.getID(),sb);
            }
        } finally {
             xmlb.closeTag("attributes"); // $NON-NLS-1$
            xmlb.closeTag("searchresult"); // $NON-NLS-1$
        }
    }

    private void sortAttributes(final ArrayList sortedAttrs) {
        Collections.sort(sortedAttrs, new Comparator()
        {
            public int compare(Object o1, Object o2)
            {
                String      nm1 = ((Attribute) o1).getID();
                String      nm2 = ((Attribute) o2).getID();

                return nm1.compareTo(nm2);
            }
        });
    }

    private void sortResults(final ArrayList sortedResults) {
        Collections.sort(sortedResults, new Comparator()
        {
            private int compareToReverse(final String s1, final String s2)
            {
                int     len1 = s1.length();
                int     len2 = s2.length();
                int     s1i = len1 - 1;
                int     s2i = len2 - 1;

                for ( ; (s1i >= 0) && (s2i >= 0); s1i--, s2i--)
                {
                    char    c1 = s1.charAt(s1i);
                    char    c2 = s2.charAt(s2i);

                    if (c1 != c2) {
                        return c1 - c2;
                    }
                }
                return len1 - len2;
            }

            public int compare(Object o1, Object o2)
            {
                String      nm1 = ((SearchResult) o1).getName();
                String      nm2 = ((SearchResult) o2).getName();

                if (nm1 == null) {
                    nm1 = "";
                }
                if (nm2 == null) {
                    nm2 = "";
                }
                return compareToReverse(nm1, nm2);
            }
        });
    }

    private String normaliseSearchDN(final SearchResult sr, final String searchBase, final String rootDn)
    {
        String      srName = sr.getName();

        if (!srName.endsWith(searchBase))
        {
            if (srName.length() > 0) {
                srName = srName + ',';
            }
            srName = srName + searchBase;
        }
        if ((rootDn.length() > 0) && !srName.endsWith(rootDn))
        {
            if (srName.length() > 0) {
                srName = srName + ',';
            }
            srName = srName + rootDn;
        }
        sr.setName(srName);
        return srName;
    }

    private String getWriteValue(final Object value)
    {
        if (value instanceof String) {
            // assume it's senstive data
            return StringEscapeUtils.escapeXml((String)value);
        }
        if (value instanceof byte[]) {
            try
            {
                return StringEscapeUtils.escapeXml(new String((byte[])value, "UTF-8")); //$NON-NLS-1$
            }
            catch (UnsupportedEncodingException e)
            {
                log.error("this can't happen: UTF-8 character encoding not supported", e);
            }
        }
        return StringEscapeUtils.escapeXml(value.toString());
    }

    public void testStarted() {
        testStarted(""); // $NON-NLS-1$
    }

    public void testEnded() {
        testEnded(""); // $NON-NLS-1$
    }

    public void testStarted(String host) {
        // ignored
    }

    // Ensure any remaining contexts are closed
    public void testEnded(String host) {
        Iterator it = ldapContexts.entrySet().iterator();
        while (it.hasNext()) {
            Map.Entry entry = (Map.Entry) it.next();
            String key = (String) entry.getKey();
            DirContext dc = (DirContext) entry.getValue();
            try {
                log.warn("Tidying old Context for thread: " + key);
                dc.close();
            } catch (NamingException ignored) {
                // ignored
            }
            it.remove();// Make sure the entry is not left around for the next run
        }

    }

    public void testIterationStart(LoopIterationEvent event) {
        // ignored
    }
}

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