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brianR |
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package net.brutex.xservices.ws.rs;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.StringTokenizer;
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import javax.ws.rs.core.GenericEntity;
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import javax.ws.rs.core.HttpHeaders;
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import javax.ws.rs.core.Response;
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import org.apache.commons.configuration.ConfigurationException;
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import org.apache.jcs.JCS;
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import org.apache.jcs.access.exception.CacheException;
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import org.apache.log4j.Logger;
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import org.netbeans.lib.cvsclient.Client;
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import org.netbeans.lib.cvsclient.command.CommandAbortedException;
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import org.netbeans.lib.cvsclient.command.CommandException;
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import org.netbeans.lib.cvsclient.command.checkout.CheckoutCommand;
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import org.netbeans.lib.cvsclient.command.checkout.ModuleListInformation;
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import org.netbeans.lib.cvsclient.command.log.LogInformation;
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import org.netbeans.lib.cvsclient.command.log.RlogCommand;
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import org.netbeans.lib.cvsclient.connection.AuthenticationException;
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import org.netbeans.lib.cvsclient.event.FileInfoEvent;
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import net.brutex.xservices.types.scm.ModuleType;
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import net.brutex.xservices.types.scm.FileType;
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import net.brutex.xservices.types.scm.Revision;
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import net.brutex.xservices.util.BasicCVSListener;
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import net.brutex.xservices.util.CVSClient;
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/**
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* @author Brian Rosenberger
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* @since 0.5.0-20120824
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*
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*/
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public class CVSInfoImpl implements CVSInfo {
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final Logger logger = Logger.getLogger(CVSInfoImpl.class);
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public Response getRepositoryFiles(HttpHeaders h, File f, String modules,
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boolean showRevisions,
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boolean forceNoCache) {
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final List<FileType> list = new ArrayList<FileType>();
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String cachekey = "getFiles" + f.toURI().toString();
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logger.debug("forceNoCache="+forceNoCache);
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List<FileType> cacheresult = (List<FileType>) getCacheInstance().get(
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cachekey);
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if (!forceNoCache && cacheresult != null) {
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// Cache hit
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list.addAll(cacheresult);
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} else {
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// Cache miss
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try {
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CVSClient cvsclient = new CVSClient(f);
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Client client = cvsclient.client;
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client.getEventManager().addCVSListener(new BasicCVSListener() {
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@Override
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public void fileInfoGenerated(FileInfoEvent arg0) {
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LogInformation info = (LogInformation) arg0
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.getInfoContainer();
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FileType cvsfile = new FileType(info.getFile(), info
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.getRepositoryFilename(), info.getDescription());
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cvsfile.setHeadRevision(info.getHeadRevision());
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cvsfile.setBranch(info.getBranch());
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cvsfile.setTotalRevisions(info.getTotalRevisions());
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for (LogInformation.Revision r : info.getRevisionList()) {
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cvsfile.addRevision(new Revision(r.getNumber(), r
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.getMessage()));
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}
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list.add(cvsfile);
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}
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});
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RlogCommand rlog = new RlogCommand();
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StringTokenizer tk = new StringTokenizer(modules, ",");
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while (tk.hasMoreTokens()) {
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rlog.setModule(tk.nextToken());
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}
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if (rlog.getModules().length == 0)
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rlog.setModule("");
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rlog.setDefaultBranch(true); // -b Print information about the
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// revisions on the default
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// branch,
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// normally the highest branch
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// on
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// the trunk.
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rlog.setNoTags(true); // -N Do not print the list of tags for
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// this
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// file. This option can be very useful
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// when
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// your site uses a lot of tags, so
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// rather
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// than "more"'ing over 3 pages of tag
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// information, the log information is
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// presented without tags at all.
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rlog.setHeaderAndDescOnly(false); // -t Print only the name of
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// the
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// rcs file, name of the
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// file in
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// the working directory,
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// head,
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// default branch, access
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// list,
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// locks, symbolic names,
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// and
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// suffix. + description
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// rlog.setRevisionFilter("1.1.");
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// rlog.setSuppressHeader(true); // -S Supress log output when
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// no
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// revisions are selected within a file.
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client.executeCommand(rlog, cvsclient.getGlobalOptions());
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logger.info("Execute CVS command '" + rlog.getCVSCommand() + "' against '"+cvsclient.getRoot().host+"@" + cvsclient.getRoot().repository+"'");
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//need to put a new list into cache as we will filter the result
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//afterwards
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getCacheInstance().put(cachekey, new ArrayList<FileType>(list));
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} catch (ConfigurationException e) {
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logger.error("CVS Configuration File '"
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+ f.getAbsolutePath() + f.getName() + "'not found.", e);
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} catch (CommandAbortedException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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} catch (AuthenticationException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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} catch (CommandException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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} catch (CacheException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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// prepare output after everything is cached
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if (!showRevisions) {
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for (FileType t : list) {
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t.clearRevisionList();
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}
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}
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GenericEntity entity = new GenericEntity<List<FileType>>(list) {};
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return Response.ok(entity).build();
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}
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@Override
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public Response getModules(HttpHeaders h, File f, boolean forceNoCache) {
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// Try to deliver from Cache
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String cachekey = "Modules" + f.toURI().toString();
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logger.debug("forceNoCache="+forceNoCache);
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List<ModuleType> response = (List<ModuleType>) getCacheInstance().get(
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cachekey);
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if (!forceNoCache && response != null) {
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GenericEntity entity = new GenericEntity<List<ModuleType>>(response) {
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};
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return Response.ok(entity).build();
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}
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// -------------------------
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try {
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CVSClient cvsclient = new CVSClient(f);
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Client client = cvsclient.client;
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final List<ModuleType> list = new ArrayList<ModuleType>();
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client.getEventManager().addCVSListener(new BasicCVSListener() {
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public void fileInfoGenerated(FileInfoEvent e) {
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ModuleListInformation info = (ModuleListInformation) e
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.getInfoContainer();
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list.add(new ModuleType(info.getModuleName(), info
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.getModuleStatus(), info.getPaths(), info.getType()));
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}
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});
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CheckoutCommand co = new CheckoutCommand();
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co.setShowModulesWithStatus(true);
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client.executeCommand(co, cvsclient.getGlobalOptions());
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logger.info("Execute CVS command '" + co.getCVSCommand() + "' against '"+cvsclient.getRoot().host+"@" + cvsclient.getRoot().repository+"'");
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if(list.size()==0) {
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logger.warn("Repository '" + cvsclient.getRoot().repository + "' does not have modules");
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list.add(new ModuleType("","","",""));
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}
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GenericEntity entity = new GenericEntity<List<ModuleType>>(list) {
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};
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getCacheInstance().put(cachekey, list);
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return Response.ok(entity).build();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return Response.serverError().build();
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}
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/**
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* Get the caching manager for CVS objects
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*
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* @return The CVSCaching JCS region
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*/
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public JCS getCacheInstance() {
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JCS jcs = null;
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final String cacheinstance = "CVSCache";
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try {
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logger.debug("Getting cache instance named '"+cacheinstance+"'" );
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jcs = JCS.getInstance(cacheinstance);
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} catch (CacheException e) {
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logger.error("Failed to get cache instance", e);
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e.printStackTrace();
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}
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return jcs;
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}
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}
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