Java tutorial
/* * Copyright (c) 2006, WSO2 Inc. (http://www.wso2.org) All Rights Reserved. * * Licensed 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.wso2.carbon.registry.search.services.utils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.wso2.carbon.registry.common.utils.UserUtil; import org.wso2.carbon.registry.core.*; import org.wso2.carbon.registry.core.Collection; import org.wso2.carbon.registry.core.exceptions.RegistryException; import org.wso2.carbon.registry.core.secure.AuthorizationFailedException; import org.wso2.carbon.registry.core.session.UserRegistry; import org.wso2.carbon.registry.common.ResourceData; import org.wso2.carbon.registry.common.utils.CommonUtil; import org.wso2.carbon.registry.search.beans.AdvancedSearchResultsBean; import org.wso2.carbon.registry.search.beans.CustomSearchParameterBean; import java.util.*; import java.util.regex.Pattern; public class AdvancedSearchResultsBeanPopulator { public static final Log log = LogFactory.getLog(AdvancedSearchResultsBeanPopulator.class); public static AdvancedSearchResultsBean populate(Registry configSystemRegistry, UserRegistry registry, CustomSearchParameterBean propertyNameValues) { AdvancedSearchResultsBean advancedSearchResultsBean = new AdvancedSearchResultsBean(); try { String[] childPaths = getQueryResult(configSystemRegistry, registry, propertyNameValues.getParameterValues()); String[][] parameterValues = propertyNameValues.getParameterValues(); String resourcePathPattern = null; for (String[] parameterValue : parameterValues) { if (parameterValue[0].equals("resourcePath") && parameterValue[1] != null && parameterValue[1].length() > 0) { resourcePathPattern = "^(" + parameterValue[1].replace("%", ".*").replace("$", "\\$") + ")$"; break; } } boolean onlyAssociation = true; String associationType = null; String associationDestination = null; for (String[] parameterValue : parameterValues) { if (!parameterValue[0].equals("content") && !parameterValue[0].equals("associationType") && !parameterValue[0].equals("associationDest") && !parameterValue[0].equals("leftOp") && !parameterValue[0].equals("rightOp") && parameterValue[1] != null && parameterValue[1].length() > 0) { onlyAssociation = false; } if (parameterValue[0].equals("associationType") && parameterValue[1] != null && parameterValue[1].length() > 0) { associationType = parameterValue[1]; } if (parameterValue[0].equals("associationDest") && parameterValue[1] != null && parameterValue[1].length() > 0) { associationDestination = parameterValue[1]; } } if (onlyAssociation) { for (String[] parameterValue : parameterValues) { if (parameterValue[0].equals("resourcePath")) { parameterValue[1] = "%"; break; } } childPaths = getQueryResult(configSystemRegistry, registry, parameterValues); } List<ResourceData> resourceDataList = new ArrayList<ResourceData>(); for (String childPath : childPaths) { if (resourcePathPattern != null && !Pattern.compile(resourcePathPattern) .matcher(childPath.substring(childPath.lastIndexOf(RegistryConstants.PATH_SEPARATOR) + 1)) .find()) { continue; } boolean doContinue = true; boolean doContinueDest = true; if (associationDestination != null) { Association[] destinationAssociations = registry.getAllAssociations(childPath); for (Association association : destinationAssociations) { if (association.getDestinationPath().contains(associationDestination)) { // && association.getDestinationPath().equals( // childPath)) { doContinueDest = false; break; } } } if (associationType != null) { Association[] typeAssociations = registry.getAssociations(childPath, associationType); for (Association association : typeAssociations) { if (association.getSourcePath().equals(childPath)) { doContinue = false; break; } } } if ((associationType != null && doContinue) || (associationDestination != null && doContinueDest)) { continue; } try { Resource child = registry.get(childPath); if ("true".equals(child.getProperty("registry.absent"))) { continue; } ResourceData resourceData = new ResourceData(); resourceData.setResourcePath(childPath); if (childPath != null) { if (RegistryConstants.ROOT_PATH.equals(childPath)) { resourceData.setName("root"); } else { String[] parts = childPath.split(RegistryConstants.PATH_SEPARATOR); resourceData.setName(parts[parts.length - 1]); } } String actualPath = child.getProperty("registry.actualpath"); if (actualPath != null && registry.resourceExists(actualPath)) { child = registry.get(actualPath); } resourceData.setResourceType(child instanceof Collection ? "collection" : "resource"); resourceData.setAuthorUserName(child.getAuthorUserName()); resourceData.setDescription(child.getDescription()); resourceData.setAverageRating(registry.getAverageRating(child.getPath())); Calendar createdDateTime = Calendar.getInstance(); createdDateTime.setTime(child.getCreatedTime()); resourceData.setCreatedOn(createdDateTime); CommonUtil.populateAverageStars(resourceData); String user = child.getProperty("registry.user"); if (registry.getUserName().equals(user)) { resourceData.setPutAllowed(true); resourceData.setDeleteAllowed(true); resourceData.setGetAllowed(true); } else { resourceData .setPutAllowed(UserUtil.isPutAllowed(registry.getUserName(), childPath, registry)); resourceData.setDeleteAllowed( UserUtil.isDeleteAllowed(registry.getUserName(), childPath, registry)); resourceData .setGetAllowed(UserUtil.isGetAllowed(registry.getUserName(), childPath, registry)); } child.discard(); resourceDataList.add(resourceData); } catch (AuthorizationFailedException e) { // do not show unauthorized resource in search results. } } SearchUtils.sortResourceDataList(resourceDataList); advancedSearchResultsBean .setResourceDataList(resourceDataList.toArray(new ResourceData[resourceDataList.size()])); } catch (RegistryException e) { String msg = "Failed to get advanced search results. " + e.getMessage(); advancedSearchResultsBean.setErrorMessage(msg); } catch (Exception e) { log.error("An error occurred while obtaining search results", e); } return advancedSearchResultsBean; } private static String[] getQueryResult(Registry configSystemRegistry, UserRegistry registry, String[][] propertyNameValues) throws Exception { AdvancedResourceQuery query = new AdvancedResourceQuery(); Map<String, String> customValues = new HashMap<String, String>(); for (String[] propertyNameValue : propertyNameValues) { if (propertyNameValue[0].equals("resourcePath")) { query.setResourceName(propertyNameValue[1]); } else if (propertyNameValue[0].equals("author")) { query.setAuthorName(propertyNameValue[1]); } else if (propertyNameValue[0].equals("updater")) { query.setUpdaterName(propertyNameValue[1]); } else if (propertyNameValue[0].equals("createdAfter")) { query.setCreatedAfter(CommonUtil.computeDate(propertyNameValue[1])); } else if (propertyNameValue[0].equals("createdBefore")) { query.setCreatedBefore(addOneDay(CommonUtil.computeDate(propertyNameValue[1]))); } else if (propertyNameValue[0].equals("updatedAfter")) { query.setUpdatedAfter(CommonUtil.computeDate(propertyNameValue[1])); } else if (propertyNameValue[0].equals("updatedBefore")) { query.setUpdatedBefore(addOneDay(CommonUtil.computeDate(propertyNameValue[1]))); } else if (propertyNameValue[0].equals("commentWords")) { query.setCommentWords(propertyNameValue[1]); } else if (propertyNameValue[0].equals("associationType")) { query.setAssociationType(propertyNameValue[1]); } else if (propertyNameValue[0].equals("associationDest")) { query.setAssociationDest(propertyNameValue[1]); } else if (propertyNameValue[0].equals("tags")) { query.setTags(propertyNameValue[1]); } else if (propertyNameValue[0].equals("propertyName")) { query.setPropertyName(propertyNameValue[1]); } else if (propertyNameValue[0].equals("leftPropertyValue")) { query.setLeftPropertyValue(propertyNameValue[1]); } else if (propertyNameValue[0].equals("rightPropertyValue")) { query.setRightPropertyValue(propertyNameValue[1]); } else if (propertyNameValue[0].equals("propertyValue")) { query.setRightPropertyValue(propertyNameValue[1]); query.setRightOp("eq"); } else if (propertyNameValue[0].equals("authorNameNegate")) { query.setAuthorNameNegate(propertyNameValue[1]); } else if (propertyNameValue[0].equals("updaterNameNegate")) { query.setUpdaterNameNegate(propertyNameValue[1]); } else if (propertyNameValue[0].equals("createdRangeNegate")) { query.setCreatedRangeNegate(propertyNameValue[1]); } else if (propertyNameValue[0].equals("updatedRangeNegate")) { query.setUpdatedRangeNegate(propertyNameValue[1]); } else if (propertyNameValue[0].equals("leftOp")) { query.setLeftOp(propertyNameValue[1]); } else if (propertyNameValue[0].equals("rightOp")) { query.setRightOp(propertyNameValue[1]); } else if (propertyNameValue[0].equals("content")) { query.setContent(propertyNameValue[1]); } else if (propertyNameValue[0].equals("mediaType")) { query.setMediaType(propertyNameValue[1]); } else if (propertyNameValue[0].equals("mediaTypeNegate")) { query.setMediaTypeNegate(propertyNameValue[1]); } else { customValues.put(propertyNameValue[0], propertyNameValue[1]); } } boolean first = true, noCustomSearch = true; Set<String> s = new HashSet<String>(); for (Map.Entry<String, String> entry : customValues.entrySet()) { if (!entry.getValue().equals("")) { Map<String, String> temp = new HashMap<String, String>(); temp.put(entry.getKey(), entry.getValue()); query.setCustomSearchValues(temp); Resource qResults = query.execute(configSystemRegistry, registry); if (((String[]) qResults.getContent()).length > 0) { if (first) { s.addAll(Arrays.asList((String[]) qResults.getContent())); first = false; } else { s.retainAll(Arrays.asList((String[]) qResults.getContent())); } } else { s.clear(); return new String[0]; } noCustomSearch = false; } } if (noCustomSearch) { query.setCustomSearchValues(customValues); Resource qResults = query.execute(configSystemRegistry, registry); return (String[]) qResults.getContent(); } String[] ret = new String[s.size()]; ret = s.toArray(ret); return ret; } private static Date addOneDay(Date date) { if (date == null) { return null; } Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(Calendar.DAY_OF_MONTH, 1); return calendar.getTime(); } }