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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.orcs.db.internal.proxy;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLConnection;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.core.exception.OseeDataStoreException;
import org.eclipse.osee.framework.core.util.Conditions;
import org.eclipse.osee.framework.jdk.core.type.PropertyStore;
import org.eclipse.osee.framework.jdk.core.util.Lib;
import org.eclipse.osee.framework.jdk.core.util.Strings;
import org.eclipse.osee.framework.resource.management.IResource;
import org.eclipse.osee.framework.resource.management.IResourceLocator;
import org.eclipse.osee.framework.resource.management.IResourceLocatorManager;
import org.eclipse.osee.framework.resource.management.IResourceManager;
import org.eclipse.osee.orcs.db.internal.util.ByteStreamResource;
/**
* @author Roberto E. Escobar
*/
public class ResourceHandler implements DataHandler {
private static final PropertyStore DEFAULT_OPTIONS = new PropertyStore();
private final IResourceManager resourceManager;
private final IResourceLocatorManager resourceLocator;
public ResourceHandler(IResourceManager resourceManager, IResourceLocatorManager resourceLocator) {
super();
this.resourceManager = resourceManager;
this.resourceLocator = resourceLocator;
}
@Override
public byte[] acquire(DataResource dataResource) throws OseeCoreException {
String path = dataResource.getLocator();
Conditions.checkNotNull(path, "resource path");
IResourceLocator locator = resourceLocator.getResourceLocator(path);
Conditions.checkNotNull(locator, "resource locator", "Unable to locate resource: [%s]",
dataResource.getStorageName());
IResource resource = resourceManager.acquire(locator, DEFAULT_OPTIONS);
resource.getName();
InputStream inputStream = resource.getContent();
try {
String mimeType = URLConnection.guessContentTypeFromStream(inputStream);
if (mimeType == null) {
mimeType = URLConnection.guessContentTypeFromName(resource.getLocation().toASCIIString());
if (mimeType == null) {
mimeType = "application/*";
}
}
dataResource.setContentType(mimeType);
dataResource.setEncoding("ISO-8859-1");
return Lib.inputStreamToBytes(inputStream);
} catch (IOException ex) {
throw new OseeCoreException(ex, "Error acquiring resource - name[%s] locator[%s]",
dataResource.getStorageName(), dataResource.getLocator());
} finally {
Lib.close(inputStream);
}
}
@Override
public void save(int storageId, DataResource dataResource, byte[] rawContent) throws OseeCoreException {
StringBuilder storageName = new StringBuilder();
storageName.append(dataResource.getStorageName());
String extension = dataResource.getExtension();
if (Strings.isValid(extension)) {
storageName.append(".");
storageName.append(extension);
}
String seed = Integer.toString(storageId);
IResourceLocator locatorHint = resourceLocator.generateResourceLocator("attr", seed, storageName.toString());
String contentType = dataResource.getContentType();
boolean isCompressed = Strings.isValid(contentType) && contentType.contains("zip");
IResource resource = new ByteStreamResource(locatorHint, rawContent, isCompressed);
IResourceLocator locator = resourceManager.save(locatorHint, resource, DEFAULT_OPTIONS);
Conditions.checkNotNull(locator, "locator", "Error saving resource [%s]", locatorHint.getRawPath());
dataResource.setLocator(locator.getLocation().toASCIIString());
}
@Override
public void delete(DataResource dataResource) throws OseeCoreException {
String path = dataResource.getLocator();
Conditions.checkNotNull(path, "resource path");
IResourceLocator locator = resourceLocator.getResourceLocator(path);
Conditions.checkNotNull(locator, "resource locator", "Unable to locate resource: [%s]",
dataResource.getStorageName());
int result = resourceManager.delete(locator);
if (IResourceManager.OK != result) {
throw new OseeDataStoreException("Error deleting resource located at [%s]", dataResource.getLocator());
}
}
}
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