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Move SLD package extension in StyleResource. Added docs, unit tests a…
…nd code refactor
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src/main/src/main/java/org/geoserver/catalog/SLDPackageHandler.java
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| Original file line number | Original file line | Diff line number | Diff line change |
|---|---|---|---|
| @@ -0,0 +1,122 @@ | |||
| /* (c) 2014 Open Source Geospatial Foundation - all rights reserved | |||
| * (c) 2001 - 2014 OpenPlans | |||
| * This code is licensed under the GPL 2.0 license, available at the root | |||
| * application directory. | |||
| */ | |||
| package org.geoserver.catalog; | |||
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| import com.google.common.io.Files; | |||
| import org.apache.commons.io.FileUtils; | |||
| import org.geotools.map.StyleLayer; | |||
| import org.geotools.styling.*; | |||
| import org.geotools.util.Version; | |||
| import org.geotools.util.logging.Logging; | |||
| import org.xml.sax.EntityResolver; | |||
|
|
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| import java.io.*; | |||
| import java.util.List; | |||
| import java.util.logging.Logger; | |||
| import java.util.zip.ZipEntry; | |||
| import java.util.zip.ZipOutputStream; | |||
|
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| /** | |||
| * SLD package style handler. | |||
| * | |||
| * @author Jose García | |||
| * | |||
| */ | |||
| public class SLDPackageHandler extends StyleHandler { | |||
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| static Logger LOGGER = Logging.getLogger(SLDPackageHandler.class); | |||
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| public static final String FORMAT = "zip"; | |||
| public static final String MIMETYPE = "application/zip"; | |||
|
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| private SLDHandler sldHandler; | |||
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| protected SLDPackageHandler(SLDHandler sldHandler) { | |||
| super("ZIP", FORMAT); | |||
| this.sldHandler = sldHandler; | |||
| } | |||
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| @Override | |||
| public String mimeType(Version version) { | |||
| return MIMETYPE; | |||
| } | |||
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| @Override | |||
| public StyledLayerDescriptor parse(Object input, Version version, ResourceLocator resourceLocator, EntityResolver entityResolver) throws IOException { | |||
| File sldFile = null; | |||
| try | |||
| { | |||
| sldFile = unzipSldPackage(input); | |||
| return sldHandler.parse(sldFile, version, resourceLocator, entityResolver); | |||
| } | |||
| finally | |||
| { | |||
| if (sldFile != null) FileUtils.deleteQuietly(sldFile.getParentFile()); | |||
| } | |||
| } | |||
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| @Override | |||
| public void encode(StyledLayerDescriptor sld, Version version, boolean pretty, OutputStream output) throws IOException { | |||
| ZipOutputStream zos = new ZipOutputStream(output); | |||
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| try { | |||
| String sldName = (sld.getName() != null)?sld.getName():"style"; | |||
| zos.putNextEntry(new ZipEntry(sldName + ".sld")); | |||
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| OutputStream sldOutputStream = new ByteArrayOutputStream(); | |||
| sldHandler.encode(sld, version, pretty, sldOutputStream); | |||
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| zos.write(((ByteArrayOutputStream) sldOutputStream).toByteArray()); | |||
| zos.closeEntry(); | |||
| } | |||
| finally { | |||
| zos.close(); | |||
| } | |||
|
|
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| } | |||
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| @Override | |||
| public List<Exception> validate(Object input, Version version, EntityResolver entityResolver) throws IOException { | |||
| File sldFile = null; | |||
| try | |||
| { | |||
| sldFile = unzipSldPackage(input); | |||
| return sldHandler.validate(input, version, entityResolver); | |||
| } | |||
| finally | |||
| { | |||
| if (sldFile != null) FileUtils.deleteQuietly(sldFile.getParentFile()); | |||
| } | |||
| } | |||
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| /** | |||
| * Unzips a SLD package to a temporal folder, returning the SLD file path. | |||
| * | |||
| * @param input | |||
| * @return | |||
| * @throws IOException | |||
| */ | |||
| private File unzipSldPackage(Object input) throws IOException { | |||
| File myTempDir = Files.createTempDir(); | |||
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| org.geoserver.data.util.IOUtils.decompress((InputStream) input, myTempDir); | |||
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| File[] files = myTempDir.listFiles(new FilenameFilter() { | |||
| public boolean accept(File dir, String name) { | |||
| return name.toLowerCase().endsWith(".sld"); | |||
| } | |||
| }); | |||
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| if (files.length != 1) { | |||
| throw new IOException("No SLD file"); | |||
| } | |||
|
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| return files[0]; | |||
| } | |||
|
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| } | |||
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