| /* |
| * 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.jclouds.s3.xml; |
| |
| import static org.jclouds.util.SaxUtils.equalsOrSuffix; |
| |
| import org.jclouds.s3.domain.DeleteResult; |
| import org.jclouds.http.functions.ParseSax; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.SAXException; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.ImmutableSet; |
| |
| public class DeleteResultHandler extends ParseSax.HandlerForGeneratedRequestWithResult<DeleteResult> { |
| |
| public static final String DELETED_TAG = "Deleted"; |
| public static final String ERROR_TAG = "Error"; |
| |
| private final ErrorEntryHandler errorEntryHandler = new ErrorEntryHandler(); |
| |
| private StringBuilder deletedEntryAccumulator = new StringBuilder(); |
| |
| /** |
| * Accumulator for the set of successfully deleted files |
| */ |
| private final ImmutableSet.Builder<String> deleted = ImmutableSet.builder(); |
| |
| /** |
| * Accumulator for the set of errors |
| */ |
| private final ImmutableMap.Builder<String, DeleteResult.Error> errors = ImmutableMap.builder(); |
| |
| private boolean parsingDeletedEntry = false; |
| private boolean parsingErrorEntry = false; |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void startElement(String uri, String name, String qName, Attributes attributes) |
| throws SAXException { |
| if (equalsOrSuffix(qName, DELETED_TAG)) { |
| parsingDeletedEntry = true; |
| } else if (equalsOrSuffix(qName, ERROR_TAG)) { |
| parsingErrorEntry = true; |
| } |
| |
| if (parsingDeletedEntry) { |
| deletedEntryAccumulator.setLength(0); |
| } else if (parsingErrorEntry) { |
| errorEntryHandler.startElement(uri, name, qName, attributes); |
| } |
| } |
| |
| @Override |
| public void characters(char[] chars, int start, int length) throws SAXException { |
| if (parsingDeletedEntry) { |
| deletedEntryAccumulator.append(chars, start, length); |
| } else if (parsingErrorEntry) { |
| errorEntryHandler.characters(chars, start, length); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void endElement(String uri, String name, String qName) throws SAXException { |
| if (equalsOrSuffix(qName, DELETED_TAG)) { |
| parsingDeletedEntry = false; |
| deleted.add(deletedEntryAccumulator.toString().trim()); |
| } else if (equalsOrSuffix(qName, ERROR_TAG)) { |
| parsingErrorEntry = false; |
| errors.put(errorEntryHandler.getResult()); |
| } |
| |
| if (parsingErrorEntry) { |
| errorEntryHandler.endElement(uri, name, qName); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public DeleteResult getResult() { |
| return new DeleteResult(deleted.build(), errors.build()); |
| } |
| } |