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CM-690 virtualization
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@117474 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Bogdan Horje
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/*
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* Copyright (C) 2005-2015 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see http://www.gnu.org/licenses/.
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*/
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package org.alfresco.repo.virtual.model;
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import java.io.IOException;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import java.util.regex.Pattern;
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import org.alfresco.model.ContentModel;
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import org.alfresco.repo.dictionary.constraint.ListOfValuesConstraint;
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import org.alfresco.repo.virtual.config.NodeRefExpression;
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import org.alfresco.repo.virtual.store.SystemVirtualizationMethod;
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import org.alfresco.service.cmr.dictionary.ConstraintException;
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import org.alfresco.service.cmr.i18n.MessageLookup;
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import org.alfresco.service.cmr.repository.ChildAssociationRef;
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import org.alfresco.service.cmr.repository.NodeRef;
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import org.alfresco.service.cmr.repository.NodeService;
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import org.alfresco.service.namespace.NamespacePrefixResolver;
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import org.alfresco.service.namespace.QName;
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import org.springframework.core.io.Resource;
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import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
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import org.springframework.core.io.support.ResourcePatternResolver;
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import org.springframework.extensions.surf.util.I18NUtil;
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/**
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* A system paths string values constraint to be used in conjunction with
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* {@link SystemVirtualizationMethod}s to provide available system paths by
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* exploring a predefined location in the java classpath ad a predefined
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* repository location.
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*
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* @author Silviu Dinuta
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*/
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public class SystemTemplateLocationsConstraint extends ListOfValuesConstraint
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{
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public static final String NULL_SYSTEM_TEMPLATE = "nullSystemTemplate";
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public static final String NULL_SYSTEM_TEMPLATE_MESSAGE = "vm_virtualization.nullSystemTemplate.message";
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private NodeService nodeService;
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private String templatesParentClasspath;
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private NodeRefExpression templatesParentRepositoryPath;
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private NamespacePrefixResolver namespacePrefixResolver;
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private String repositoryTemplateTypeName;
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public SystemTemplateLocationsConstraint()
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{
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super();
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}
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public void setNodeService(NodeService nodeService)
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{
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this.nodeService = nodeService;
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}
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public void setTemplatesParentClasspath(String templatesParentClasspath)
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{
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this.templatesParentClasspath = templatesParentClasspath;
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}
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public String getTemplatesParentClasspath()
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{
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return this.templatesParentClasspath;
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}
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public NodeRefExpression getTemplatesParentRepositoryPath()
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{
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return this.templatesParentRepositoryPath;
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}
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public void setTemplatesParentRepositoryPath(NodeRefExpression templatesParentRepositoryPath)
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{
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this.templatesParentRepositoryPath = templatesParentRepositoryPath;
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}
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public void setNamespacePrefixResolver(NamespacePrefixResolver namespacePrefixResolver)
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{
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this.namespacePrefixResolver = namespacePrefixResolver;
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}
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public void setRepositoryTemplateTypeName(String repositoryTemplateTypeName)
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{
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this.repositoryTemplateTypeName = repositoryTemplateTypeName;
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}
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@Override
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public List<String> getRawAllowedValues()
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{
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List<String> result = null;
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try
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{
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result = loadClasspathTemplates(templatesParentClasspath,
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"json");
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}
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catch (IOException e)
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{
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throw new ConstraintException("ListTemplateTypesConstraints",
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e);
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}
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List<String> repositoryTemplates = loadRepositoryTemplates(templatesParentRepositoryPath);
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result.addAll(repositoryTemplates);
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if (result.size() == 0)
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{
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result.add(NULL_SYSTEM_TEMPLATE);
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}
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super.setAllowedValues(result);
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return result;
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}
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@Override
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public List<String> getAllowedValues()
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{
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if (sorted == true)
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{
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List<String> rawValues = getRawAllowedValues();
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List<String> values = new ArrayList<String>(rawValues);
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Collections.sort(values,
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new LabelComparator());
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return values;
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}
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else
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{
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return super.getAllowedValues();
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}
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}
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@Override
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public String getDisplayLabel(String constraintAllowableValue, MessageLookup messageLookup)
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{
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if (constraintAllowableValue.startsWith("N"))
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{
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Serializable nameProperty = nodeService.getProperty(new NodeRef(constraintAllowableValue.substring(1)),
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ContentModel.PROP_NAME);
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return nameProperty.toString();
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}
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else if (constraintAllowableValue.equals(SystemTemplateLocationsConstraint.NULL_SYSTEM_TEMPLATE))
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{
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String message = messageLookup.getMessage(SystemTemplateLocationsConstraint.NULL_SYSTEM_TEMPLATE_MESSAGE,
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I18NUtil.getLocale());
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return message == null ? constraintAllowableValue : message;
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}
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else
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{
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return constraintAllowableValue.substring(constraintAllowableValue.lastIndexOf("/") + 1);
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}
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}
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@Override
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protected void evaluateSingleValue(Object value)
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{
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super.setAllowedValues(getAllowedValues());
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super.evaluateSingleValue(value);
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}
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private List<String> loadClasspathTemplates(String templatesParentClasspath, String... extensions)
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throws IOException
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{
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List<String> result = new ArrayList<String>(5);
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List<String> files = new ArrayList<String>(5);
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ClassLoader cl = this.getClass().getClassLoader();
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ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(cl);
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Resource[] resources = resolver.getResources("classpath*:" + templatesParentClasspath + "/*");
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for (Resource resource : resources)
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{
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files.add(resource.getFilename());
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}
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if (extensions != null && extensions.length > 0)
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{
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String extensionStr = "";
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for (int i = 0; i < extensions.length; i++)
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{
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if (i == extensions.length - 1)
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{
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extensionStr += extensions[i];
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}
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else
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{
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extensionStr += extensions[i] + "|";
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}
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}
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String fileExtensions = "(?i).*\\.(" + extensionStr + ")$";
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Pattern pattern = Pattern.compile(fileExtensions);
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for (String file : files)
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{
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if (pattern.matcher(file).matches())
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{
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result.add("C" + templatesParentClasspath + "/" + file);
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}
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}
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}
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return result;
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}
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private List<String> loadRepositoryTemplates(NodeRefExpression templatesParentRepositoryPath)
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{
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List<String> result = new ArrayList<String>();
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NodeRef findNodeRef = templatesParentRepositoryPath.resolve();
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if (findNodeRef != null)
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{
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final QName repositoryTemplateTypeQName = QName.createQName(repositoryTemplateTypeName,
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namespacePrefixResolver);
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Set<QName> searchTypeQNames = new HashSet<QName>();
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searchTypeQNames.add(repositoryTemplateTypeQName);
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List<ChildAssociationRef> children = nodeService.getChildAssocs(findNodeRef,
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searchTypeQNames);
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for (ChildAssociationRef childAssociationRef : children)
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{
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NodeRef childNodeRef = childAssociationRef.getChildRef();
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QName childType = nodeService.getType(childNodeRef);
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if (searchTypeQNames.contains(childType))
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{
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result.add("N" + childNodeRef.toString());
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}
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}
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}
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return result;
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}
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private class LabelComparator implements Comparator<String>
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{
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@Override
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public int compare(String o1, String o2)
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{
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return getDisplayLabel(o1,
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null).compareTo(getDisplayLabel(o2,
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null));
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}
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}
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}
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