001/*
002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     ataillefer
016 */
017package org.nuxeo.ecm.diff.model.impl;
018
019import java.util.ArrayList;
020import java.util.HashMap;
021import java.util.List;
022import java.util.Map;
023
024import org.nuxeo.ecm.diff.model.DocumentDiff;
025import org.nuxeo.ecm.diff.model.SchemaDiff;
026
027/**
028 * Implementation of DocumentDiff using a HashMap.
029 * 
030 * @author <a href="mailto:ataillefer@nuxeo.com">Antoine Taillefer</a>
031 */
032public class DocumentDiffImpl implements DocumentDiff {
033
034    private static final long serialVersionUID = -5117078340766697371L;
035
036    /**
037     * Map holding the doc diff.
038     * <p>
039     * Keys are schema names. Values represent the differences between the fields of the schema.
040     */
041    private Map<String, SchemaDiff> docDiff;
042
043    /**
044     * Instantiates a new document diff impl.
045     */
046    public DocumentDiffImpl() {
047        docDiff = new HashMap<String, SchemaDiff>();
048    }
049
050    public Map<String, SchemaDiff> getDocDiff() {
051        return docDiff;
052    }
053
054    public int getSchemaCount() {
055        return docDiff.size();
056    }
057
058    public boolean isDocDiffEmpty() {
059        return getSchemaCount() == 0;
060    }
061
062    public List<String> getSchemaNames() {
063        return new ArrayList<String>(docDiff.keySet());
064    }
065
066    public SchemaDiff getSchemaDiff(String schema) {
067        return docDiff.get(schema);
068    }
069
070    public SchemaDiff initSchemaDiff(String schema) {
071        SchemaDiff schemaDiff = new SchemaDiffImpl();
072        docDiff.put(schema, schemaDiff);
073        return schemaDiff;
074    }
075
076}