gvsig-raster / org.gvsig.raster / branches / org.gvsig.raster.2.4 / org.gvsig.raster / org.gvsig.raster.tilecache / org.gvsig.raster.tilecache.provider / src / main / java / org / gvsig / raster / tilecache / provider / AbstractTileCacheStoreProvider.java @ 8691
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/* gvSIG. Desktop Geographic Information System.
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*
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* Copyright ? 2007-2016 gvSIG Association
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.raster.tilecache.provider; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.fmap.dal.DataServerExplorer; |
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import org.gvsig.fmap.dal.DataStore; |
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import org.gvsig.fmap.dal.DataStoreParameters; |
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import org.gvsig.fmap.dal.exception.CloseException; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.InitializeException; |
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import org.gvsig.fmap.dal.exception.OpenException; |
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import org.gvsig.fmap.dal.exception.ReadException; |
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import org.gvsig.fmap.dal.exception.ValidateDataParametersException; |
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import org.gvsig.fmap.dal.raster.api.BandAttributeDescriptor; |
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import org.gvsig.fmap.dal.raster.api.BandDescriptor; |
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import org.gvsig.fmap.dal.raster.api.RasterQuery; |
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import org.gvsig.fmap.dal.raster.spi.AbstractRasterStoreProvider; |
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import org.gvsig.fmap.dal.raster.spi.RasterCacheStoreProvider; |
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import org.gvsig.fmap.dal.raster.spi.RasterStoreProvider; |
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import org.gvsig.fmap.dal.spi.DataStoreProviderServices; |
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import org.gvsig.fmap.geom.exception.CreateEnvelopeException; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.raster.lib.buffer.api.BandInfo; |
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import org.gvsig.raster.lib.buffer.api.Buffer; |
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import org.gvsig.raster.lib.buffer.api.BufferDimensions; |
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import org.gvsig.raster.lib.buffer.api.BufferLocator; |
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import org.gvsig.raster.lib.buffer.api.BufferManager; |
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import org.gvsig.raster.lib.buffer.api.NoData; |
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import org.gvsig.raster.lib.buffer.api.PageManager; |
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import org.gvsig.raster.lib.buffer.api.TileStruct; |
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import org.gvsig.raster.lib.buffer.api.exceptions.BufferException; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dispose.DisposeUtils; |
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import org.gvsig.tools.dispose.impl.AbstractDisposable; |
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import org.gvsig.tools.dynobject.DynObject; |
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import org.gvsig.tools.dynobject.exception.DynFieldNotFoundException; |
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import org.gvsig.tools.exception.BaseException; |
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import org.gvsig.tools.i18n.I18nManager; |
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/**
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* @author fdiaz
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*
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*/
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public abstract class AbstractTileCacheStoreProvider extends AbstractRasterStoreProvider implements |
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RasterCacheStoreProvider { |
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private TileCacheStructImage tileStructImage = null; |
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protected Envelope envelope = null; |
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protected Map<Integer, List<PageManager>> pageManagersPerZoomLevel = null; |
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protected RasterStoreProvider innerProvider;
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protected int bandsNumber; |
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/**
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* @param params
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* @param storeServices
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* @param metadata
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*/
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public AbstractTileCacheStoreProvider(DataStoreParameters params, DataStoreProviderServices storeServices,
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DynObject metadata) { |
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super(params, storeServices, metadata);
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} |
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@Override
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public Buffer createBuffer(RasterQuery rasterQuery) throws BufferException { |
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BufferManager bufferManager = BufferLocator.getBufferManager(); |
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int[] bandDataTypes; |
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List<PageManager> pageManagers = new ArrayList<PageManager>(); |
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NoData[] bandNoData;
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// FIXME: Ver qu? deber?amos hacer aqu? con la rasterQuery
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// if (rasterQuery != null) {
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// List<BandQuery> bands;
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// bands = rasterQuery.getBands();
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// }
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bandDataTypes = new int[bandsNumber]; |
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bandNoData = new NoData[bandsNumber];
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double pixelSize = rasterQuery.getPixelSize();
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int zoomLevel = 0; |
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if (pixelSize != 0.0) { |
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zoomLevel = tileStructImage.getZoomLvlForPixelSize(pixelSize); |
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} |
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List<PageManager> pageManagersInZoom;
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pageManagersInZoom = getPageManagersInZoom(zoomLevel); |
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for (int i = 0; i < tileStructImage.getBandNumber(); i++) { |
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bandDataTypes[i] = this.getBandDescriptor(i).getDataType();
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bandNoData[i] = this.getNoData(rasterQuery, i);
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pageManagers.add(pageManagersInZoom.get(i)); |
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} |
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envelope = tileStructImage.getEnvelope(); |
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Buffer buffer =
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bufferManager.createBuffer(tileStructImage.getRows(zoomLevel), tileStructImage.getColumns(zoomLevel), |
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bandDataTypes, bandNoData, (IProjection) innerProvider.getDynValue(DataStore.METADATA_CRS), envelope, |
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pageManagers); |
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return buffer;
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} |
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// @Override
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// public BandInfo getBandInfo(int band) {
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// return innerProvider.getBandInfo(band);
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// }
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@Override
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public int getBands() { |
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return bandsNumber;
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} |
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@Override
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public DataServerExplorer getExplorer() throws ReadException, ValidateDataParametersException { |
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return null; |
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} |
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@Override
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public void open() throws OpenException { |
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if (this.tileStructImage != null) { |
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return;
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} |
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} |
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protected List<PageManager> getPageManagersInZoom(int zoomLevel) { |
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List<PageManager> pageManagersInZoom = this.pageManagersPerZoomLevel.get(zoomLevel); |
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if (pageManagersInZoom == null) { |
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pageManagersInZoom = new ArrayList<PageManager>(); |
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for (int i = 0; i < tileStructImage.getBandNumber(); i++) { |
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pageManagersInZoom.add(new TileCacheBandPageManager(tileStructImage, zoomLevel, i));
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} |
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this.pageManagersPerZoomLevel.put(zoomLevel, pageManagersInZoom);
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} |
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return pageManagersInZoom;
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} |
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@Override
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public Object getDynValue(String name) throws DynFieldNotFoundException { |
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if (DataStore.METADATA_ENVELOPE.equalsIgnoreCase(name)) {
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return this.envelope; |
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} |
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if (DataStore.METADATA_CRS.equalsIgnoreCase(name)) {
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return this.innerProvider.getDynValue(name); |
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} |
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return super.getDynValue(name); |
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} |
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@Override
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public TileStruct getTileStruct() {
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return innerProvider.getTileStruct();
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} |
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protected void setTileStructImage(TileCacheStructImage tileStructImage) { |
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this.tileStructImage = tileStructImage;
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for (int i = 0; i < this.tileStructImage.getBandNumber(); i++) { |
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this.getBandDescriptor(i).setDataType(this.tileStructImage.getDataTypes()[i]); |
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} |
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} |
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/**
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* @return TileStructImage
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*/
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public TileStructImage getTileStructImage() {
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return tileStructImage;
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} |
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@Override
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public void deleteAll() { |
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tileStructImage.forgetCache(); |
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} |
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@Override
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public void close() throws CloseException { |
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this.tileStructImage = null; |
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} |
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@Override
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public String getName() { |
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return this.innerProvider.getName(); |
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} |
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@Override
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public String getFullName() { |
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return this.innerProvider.getFullName(); |
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} |
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protected void doDispose() throws BaseException { |
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super.doDispose();
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if (this.tileStructImage != null) { |
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DisposeUtils.dispose((AbstractDisposable) tileStructImage); |
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this.tileStructImage = null; |
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} |
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} |
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@Override
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public void apply(RasterStoreProvider provider, IProjection crs, RasterQuery query) throws DataException { |
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this.innerProvider = provider;
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pageManagersPerZoomLevel = new HashMap<Integer, List<PageManager>>(); |
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} |
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@Override
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public RasterStoreProvider getInnerProvider() {
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return innerProvider;
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} |
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@Override
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public BufferDimensions getDimensions() throws InitializeException { |
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return innerProvider.getDimensions();
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} |
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@Override
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public boolean isTiled() { |
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return true; |
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} |
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} |