| /* |
| * 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.oodt.cas.catalog.cli.action; |
| |
| //JDK imports |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| //Apache imports |
| import org.apache.commons.lang.StringUtils; |
| import org.apache.commons.lang.Validate; |
| |
| //OODT imports |
| import org.apache.oodt.cas.catalog.metadata.TransactionalMetadata; |
| import org.apache.oodt.cas.catalog.page.QueryPager; |
| import org.apache.oodt.cas.catalog.query.QueryExpression; |
| import org.apache.oodt.cas.catalog.query.parser.QueryParser; |
| import org.apache.oodt.cas.cli.exception.CmdLineActionException; |
| |
| /** |
| * A {@link CmdLineAction} which queries the Catalog Service and limits the |
| * results to a subset of given terms. |
| * |
| * @author bfoster (Brian Foster) |
| */ |
| public class ReducedQueryCliAction extends CatalogServiceCliAction { |
| |
| protected String query; |
| protected Set<String> catalogIds; |
| protected List<String> termNames; |
| |
| @Override |
| public void execute(ActionMessagePrinter printer) |
| throws CmdLineActionException { |
| try { |
| Validate.notNull(query, "Must specify query"); |
| Validate.notNull(termNames, "Must specify termNames"); |
| |
| QueryExpression queryExpression = QueryParser |
| .parseQueryExpression(query); |
| QueryPager queryPager = null; |
| if (catalogIds == null) { |
| queryPager = getClient().query(queryExpression); |
| } else { |
| queryPager = getClient().query(queryExpression, catalogIds); |
| } |
| List<TransactionalMetadata> transactionMetadatas = getClient() |
| .getAllPages(queryPager); |
| for (TransactionalMetadata tMet : transactionMetadatas) { |
| StringBuffer sb = new StringBuffer(""); |
| for (String termName : this.termNames) { |
| List<String> values = tMet.getMetadata().getAllMetadata( |
| (String) termName); |
| sb.append(termName |
| + " = '" |
| + (values == null ? "null" : StringUtils.join( |
| values.iterator(), ",")) + "', "); |
| } |
| printer.println(sb.substring(0, sb.length() - 2)); |
| } |
| } catch (Exception e) { |
| throw new CmdLineActionException("", e); |
| } |
| } |
| |
| public void setQuery(String query) { |
| this.query = query; |
| } |
| |
| public void setCatalogIds(List<String> catalogIds) { |
| this.catalogIds = new HashSet<String>(catalogIds); |
| } |
| |
| public void setReducedTerms(List<String> termNames) { |
| this.termNames = termNames; |
| } |
| } |