001/*
002 * (C) Copyright 2015-2016 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 *     Kevin Leturc
018 */
019package org.nuxeo.ecm.liveconnect.core;
020
021import java.util.Objects;
022
023import org.nuxeo.ecm.platform.mimetype.interfaces.MimetypeRegistry;
024import org.nuxeo.ecm.platform.mimetype.service.MimetypeRegistryService;
025import org.nuxeo.runtime.api.Framework;
026
027import com.google.common.base.MoreObjects;
028import com.google.common.base.MoreObjects.ToStringHelper;
029
030/**
031 * Basic implementation of {@link LiveConnectFile}.
032 *
033 * @since 8.1
034 */
035public abstract class AbstractLiveConnectFile implements LiveConnectFile {
036
037    private static final long serialVersionUID = 1L;
038
039    private final LiveConnectFileInfo info;
040
041    private String mimeType;
042
043    public AbstractLiveConnectFile(LiveConnectFileInfo info) {
044        this.info = Objects.requireNonNull(info);
045    }
046
047    @Override
048    public final LiveConnectFileInfo getInfo() {
049        return info;
050    }
051
052    /**
053     * Should be overriden by subclasses wanting to rely on a different field as mime type.
054     */
055    @Override
056    public String getMimeType() {
057        if (mimeType == null) {
058            MimetypeRegistryService service = (MimetypeRegistryService) Framework.getService(MimetypeRegistry.class);
059            mimeType = service.getMimetypeFromFilename(getFilename());
060        }
061        return mimeType;
062    }
063
064    /**
065     * Should be overriden by subclasses wanting to rely on a different field as encoding.
066     */
067    @Override
068    public String getEncoding() {
069        // TODO extract from mimeType
070        return null;
071    }
072
073    @Override
074    public String toString() {
075        ToStringHelper helper = MoreObjects.toStringHelper(this);
076        helper.add("mimeType", getMimeType());
077        helper.add("encoding", getEncoding());
078        helper.add("filename", getFilename());
079        helper.add("fileSize", getFileSize());
080        helper.add("digest", getDigest());
081        helper.add("info", getInfo());
082        return helper.toString();
083    }
084}