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/**
* 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.cxf.jaxrs.utils.schemas;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
import javax.xml.XMLConstants;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import org.apache.cxf.common.logging.LogUtils;
public class SchemaHandler {
private static final Logger LOG = LogUtils.getL7dLogger(SchemaHandler.class);
private static final String CLASSPATH_PREFIX = "classpath:";
private Schema schema;
public SchemaHandler() {
}
public void setSchemas(List locations) {
schema = createSchema(locations);
}
public Schema getSchema() {
return schema;
}
public static Schema createSchema(List locations) {
SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema s = null;
try {
List sources = new ArrayList();
for (String loc : locations) {
InputStream is = null;
if (loc.startsWith(CLASSPATH_PREFIX)) {
String path = loc.substring(CLASSPATH_PREFIX.length() + 1);
is = SchemaHandler.class.getClassLoader().getResourceAsStream(path);
if (is == null) {
LOG.warning("No schema resource " + loc + " is available on classpath");
return null;
}
} else {
File f = new File(loc);
if (!f.exists()) {
LOG.warning("No schema resource " + loc + " is available on local disk");
return null;
}
is = new FileInputStream(f);
}
Reader r = new BufferedReader(
new InputStreamReader(is, "UTF-8"));
sources.add(new StreamSource(r));
}
s = factory.newSchema(sources.toArray(new Source[]{}));
} catch (Exception ex) {
LOG.warning("Validation will be disabled, failed to create schema : " + ex.getMessage());
}
return s;
}
}
