/*
* 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.aws.s3.xml;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import org.jclouds.aws.s3.domain.DeleteResult;
import org.jclouds.http.functions.ParseSax;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import static org.jclouds.util.SaxUtils.equalsOrSuffix;
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 = new StringBuilder();
} 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());
}
}