/*
* 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.jackrabbit.spi2dav;
import java.util.ArrayList;
import java.util.List;
import javax.jcr.RepositoryException;
import javax.jcr.ValueFactory;
import javax.jcr.RangeIterator;
import org.apache.jackrabbit.spi.QueryInfo;
import org.apache.jackrabbit.spi.QValueFactory;
import org.apache.jackrabbit.spi.QueryResultRow;
import org.apache.jackrabbit.spi.IdFactory;
import org.apache.jackrabbit.util.ISO9075;
import org.apache.jackrabbit.webdav.MultiStatus;
import org.apache.jackrabbit.webdav.MultiStatusResponse;
import org.apache.jackrabbit.spi.commons.conversion.NamePathResolver;
import org.apache.jackrabbit.commons.iterator.RangeIteratorAdapter;
/**
* <code>QueryInfoImpl</code>...
*/
public class QueryInfoImpl implements QueryInfo {
private static final String COLUMNS = "Columns: ";
private static final String SELECTORS = "Selectors: ";
private final List<String> columnNames = new ArrayList<String>();
private final List<String> selectorNames = new ArrayList<String>();
private final List<QueryResultRow> results = new ArrayList<QueryResultRow>();
public QueryInfoImpl(MultiStatus ms, IdFactory idFactory,
NamePathResolver resolver, ValueFactory valueFactory,
QValueFactory qValueFactory)
throws RepositoryException {
String responseDescription = ms.getResponseDescription();
if (responseDescription == null) {
throw new RepositoryException(
"Missing column infos: Unable to build QueryInfo object.");
}
if (responseDescription.startsWith(COLUMNS)) {
for (String line : responseDescription.split("\n")) {
if (line.startsWith(COLUMNS)) {
decode(line.substring(COLUMNS.length()), columnNames);
} else if (line.startsWith(SELECTORS)) {
decode(line.substring(SELECTORS.length()), selectorNames);
}
}
} else {
// Backwards compatibility with old servers that only provide
// the list of columns as the response description
decode(responseDescription, columnNames);
}
for (MultiStatusResponse response : ms.getResponses()) {
results.add(new QueryResultRowImpl(
response, getColumnNames(), resolver,
qValueFactory, valueFactory, idFactory));
}
}
/**
* Splits the given string at spaces and ISO9075-decodes the parts.
*
* @param string source string
* @param list where the decoded parts get added
*/
private void decode(String string, List<String> list) {
String[] parts = string.split(" ");
for (int i = 0; i < parts.length; i++) {
list.add(ISO9075.decode(parts[i]));
}
}
/**
* @see QueryInfo#getRows()
*/
public RangeIterator getRows() {
return new RangeIteratorAdapter(results);
}
/**
* @see QueryInfo#getColumnNames()
*/
public String[] getColumnNames() {
return columnNames.toArray(new String[columnNames.size()]);
}
/**
* @see QueryInfo#getSelectorNames()
*/
public String[] getSelectorNames() {
return selectorNames.toArray(new String[selectorNames.size()]);
}
}