001/*
002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     ataillefer
018 */
019package org.nuxeo.ecm.diff.model.impl;
020
021import java.util.ArrayList;
022import java.util.HashMap;
023import java.util.List;
024import java.util.Map;
025
026import org.nuxeo.ecm.diff.model.DocumentDiff;
027import org.nuxeo.ecm.diff.model.SchemaDiff;
028
029/**
030 * Implementation of DocumentDiff using a HashMap.
031 * 
032 * @author <a href="mailto:[email protected]">Antoine Taillefer</a>
033 */
034public class DocumentDiffImpl implements DocumentDiff {
035
036    private static final long serialVersionUID = -5117078340766697371L;
037
038    /**
039     * Map holding the doc diff.
040     * <p>
041     * Keys are schema names. Values represent the differences between the fields of the schema.
042     */
043    private Map<String, SchemaDiff> docDiff;
044
045    /**
046     * Instantiates a new document diff impl.
047     */
048    public DocumentDiffImpl() {
049        docDiff = new HashMap<String, SchemaDiff>();
050    }
051
052    public Map<String, SchemaDiff> getDocDiff() {
053        return docDiff;
054    }
055
056    public int getSchemaCount() {
057        return docDiff.size();
058    }
059
060    public boolean isDocDiffEmpty() {
061        return getSchemaCount() == 0;
062    }
063
064    public List<String> getSchemaNames() {
065        return new ArrayList<String>(docDiff.keySet());
066    }
067
068    public SchemaDiff getSchemaDiff(String schema) {
069        return docDiff.get(schema);
070    }
071
072    public SchemaDiff initSchemaDiff(String schema) {
073        SchemaDiff schemaDiff = new SchemaDiffImpl();
074        docDiff.put(schema, schemaDiff);
075        return schemaDiff;
076    }
077
078}