/*
* (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others.
*
* Licensed 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.
*
* Contributors:
* Nuxeo - initial API and implementation
*
* $Id$
*
*/
package org.nuxeo.ecm.platform.pictures.tiles.api;
import java.io.File;
import java.io.IOException;
import java.io.Serializable;
import java.util.Map;
import org.nuxeo.common.utils.Path;
import org.nuxeo.ecm.core.api.Blob;
import org.nuxeo.ecm.core.api.Blobs;
import org.nuxeo.ecm.core.api.NuxeoException;
import org.nuxeo.ecm.core.api.impl.blob.FileBlob;
import org.nuxeo.ecm.platform.picture.api.ImageInfo;
import org.nuxeo.ecm.platform.pictures.tiles.helpers.StringMaker;
import org.nuxeo.runtime.api.Framework;
/**
* Default implementation for the PictureTiles interface
*
* @author tiry
*/
public class PictureTilesImpl implements PictureTiles, Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
public static String TILE_OUTPUT_DIR_KEY = "outputDirPath";
public static String TILE_INPUT_FILE_KEY = "inputFilePath";
public static String X_TILES_KEY = "XTiles";
public static String Y_TILES_KEY = "YTiles";
public static String LAST_MODIFICATION_DATE_KEY = "lastModificationDate";
// public static String ZoomFactorKey = "ZoomFactor";
public static String TILES_PREFIX_KEY = "TilesPrefix";
public static String TILES_SUFFIX_KEY = "TilesSuffix";
public static String TILES_WIDTH_KEY = "TilesWidth";
public static String TILES_HEIGHT_KEY = "TilesHeight";
public static String MAX_TILES_KEY = "MaxTiles";
public static String PROGRESSIVE_TILING_KEY = "ProgressiveTiling";
protected Map<String, String> infoMap;
protected String tilesDirPath;
protected String cacheKey;
protected ImageInfo sourceImageInfo;
protected ImageInfo originalImageInfo;
public PictureTilesImpl(String tilesDirPath) {
this.tilesDirPath = tilesDirPath;
}
public PictureTilesImpl(Map<String, String> info) {
infoMap = info;
tilesDirPath = info.get(TILE_OUTPUT_DIR_KEY);
}
public String getCacheKey() {
return cacheKey;
}
public void setCacheKey(String cacheKey) {
this.cacheKey = cacheKey;
}
public Map<String, String> getInfo() {
return infoMap;
}
public boolean isTileComputed(int x, int y) {
long lastModificationTime = Long.parseLong(infoMap.get(PictureTilesImpl.LAST_MODIFICATION_DATE_KEY));
String tileFileName = StringMaker.getTileFileName(x, y, infoMap.get(TILES_PREFIX_KEY),
infoMap.get(TILES_SUFFIX_KEY), lastModificationTime);
File imageFile = new File(tilesDirPath + tileFileName);
return imageFile.exists();
}
public Blob getTile(int x, int y) throws IOException {
String imageFilePath = getTileFilePath(x, y);
File imageFile = new File(imageFilePath);
if (imageFile.exists())
return Blobs.createBlob(imageFile);
else {
PictureTilingService pts = Framework.getService(PictureTilingService.class);
pts.completeTiles(this, x, y);
imageFile = new File(imageFilePath);
if (imageFile.exists())
return Blobs.createBlob(imageFile);
else
throw new NuxeoException("Unable to get Tile");
}
}
public String getTileFilePath(int x, int y) {
long lastModificationTime = Long.parseLong(infoMap.get(PictureTilesImpl.LAST_MODIFICATION_DATE_KEY));
String tileFileName = StringMaker.getTileFileName(x, y, infoMap.get(TILES_PREFIX_KEY),
infoMap.get(TILES_SUFFIX_KEY), lastModificationTime);
String imageFilePath = new Path(tilesDirPath).append(tileFileName).toString();
return imageFilePath;
}
public int getMaxTiles() {
String MT = infoMap.get(MAX_TILES_KEY);
if (MT == null) {
return 0;
}
return Integer.parseInt(MT);
}
public int getTilesWidth() {
String TW = infoMap.get(TILES_WIDTH_KEY);
if (TW == null) {
return 0;
}
return Integer.parseInt(TW);
}
public int getTilesHeight() {
String TH = infoMap.get(TILES_HEIGHT_KEY);
if (TH == null) {
return 0;
}
return Integer.parseInt(TH);
}
public String getTilesPath() {
return tilesDirPath;
}
public int getXTiles() {
String XT = infoMap.get(X_TILES_KEY);
if (XT == null) {
return 0;
}
return Integer.parseInt(XT);
}
public int getYTiles() {
String YT = infoMap.get(Y_TILES_KEY);
if (YT == null) {
return 0;
}
return Integer.parseInt(YT);
}
public float getZoomfactor() {
float oWith = originalImageInfo.getWidth();
float tWith = getXTiles() * getTilesWidth();
float oHeight = originalImageInfo.getHeight();
float tHeight = getYTiles() * getTilesHeight();
return tWith / oWith < tHeight / oHeight ? tWith / oWith : tHeight / oHeight;
}
public void release() {
long lastModificationTime = Long.parseLong(infoMap.get(PictureTilesImpl.LAST_MODIFICATION_DATE_KEY));
for (int x = 0; x < getXTiles(); x++) {
for (int y = 0; y < getYTiles(); y++) {
String tileFileName = StringMaker.getTileFileName(x, y, infoMap.get(TILES_PREFIX_KEY),
infoMap.get(TILES_SUFFIX_KEY), lastModificationTime);
File img = new File(tilesDirPath + tileFileName);
if (img.exists())
img.delete();
}
}
}
public ImageInfo getSourceImageInfo() {
return sourceImageInfo;
}
public void setSourceImageInfo(ImageInfo imageInfo) {
this.sourceImageInfo = imageInfo;
}
public String getTileFormatCacheKey() {
return StringMaker.getTileFormatString(getTilesWidth(), getTilesHeight(), getMaxTiles());
}
public ImageInfo getOriginalImageInfo() {
return originalImageInfo;
}
public void setOriginalImageInfo(ImageInfo imageInfo) {
originalImageInfo = imageInfo;
}
}