| /* |
| * 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.ode.utils.xml.capture; |
| |
| import java.net.URI; |
| import java.util.Set; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.Locator; |
| import org.xml.sax.SAXException; |
| |
| /** |
| * Base class for schema-specifc dependency trackers. |
| */ |
| public abstract class Tracker implements ContentHandler { |
| private static final Log __log = LogFactory.getLog(Tracker.class); |
| |
| private Set<URI> references_ ; |
| private URI base_; |
| |
| public void characters(char ch[], int start, int length) throws SAXException { |
| } |
| |
| public void endDocument() throws SAXException { |
| } |
| |
| public void endElement(String uri, String localName, String qName) throws SAXException { |
| } |
| |
| public void endPrefixMapping(String prefix) throws SAXException { |
| } |
| |
| public void ignorableWhitespace(char ch[], int start, int length) throws SAXException { |
| } |
| |
| public void processingInstruction(String target, String data) throws SAXException { |
| } |
| |
| public void setDocumentLocator(Locator locator) { |
| } |
| |
| public void skippedEntity(String name) throws SAXException { |
| } |
| |
| public void startDocument() throws SAXException { |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException { |
| } |
| |
| public void startPrefixMapping(String prefix, String uri) throws SAXException { |
| } |
| |
| protected void addReference(URI ref) { |
| if (references_.contains(ref)) { |
| return; |
| } |
| |
| if (__log.isDebugEnabled()) { |
| __log.debug("added reference " + ref + " (base is " + base_ + ")"); |
| } |
| |
| references_.add(ref); |
| } |
| |
| protected void addReference(String schemaLoc) { |
| if (schemaLoc == null) { |
| return; |
| } |
| |
| addReference(base_.resolve(schemaLoc)); |
| } |
| |
| protected URI getBase() { |
| return base_; |
| } |
| |
| public Set<URI> getReferences() { |
| return references_; |
| } |
| |
| void init(URI base,Set<URI>references) { |
| base_ = base; |
| references_ = references; |
| } |
| |
| } |