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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.framework.skynet.core.attribute.utils;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URL;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.core.exception.OseeDataStoreException;
import org.eclipse.osee.framework.core.exception.OseeExceptions;
import org.eclipse.osee.framework.core.util.HttpProcessor;
import org.eclipse.osee.framework.core.util.HttpProcessor.AcquireResult;
import org.eclipse.osee.framework.jdk.core.util.Lib;
import org.eclipse.osee.framework.skynet.core.attribute.providers.DataStore;
/**
* @author Roberto E. Escobar
*/
public abstract class AbstractResourceProcessor {
protected abstract URL getAcquireURL(DataStore dataStore) throws OseeCoreException;
protected abstract URL getDeleteURL(DataStore dataStore) throws OseeCoreException;
protected abstract URL getStorageURL(int seed, String name, String extension) throws OseeCoreException;
public abstract String createStorageName() throws OseeCoreException;
public void saveResource(int seed, String name, DataStore dataStore) throws OseeCoreException {
URL url = getStorageURL(seed, name, dataStore.getExtension());
InputStream inputStream = dataStore.getInputStream();
try {
URI uri = HttpProcessor.save(url, inputStream, dataStore.getContentType(), dataStore.getEncoding());
dataStore.setLocator(uri.toASCIIString());
} catch (Exception ex) {
OseeExceptions.wrapAndThrow(ex);
} finally {
Lib.close(inputStream);
}
}
public void acquire(DataStore dataStore) throws OseeCoreException {
URL url = getAcquireURL(dataStore);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
try {
AcquireResult result = HttpProcessor.acquire(url, outputStream);
int code = result.getCode();
if (code == HttpURLConnection.HTTP_OK) {
dataStore.setContent(outputStream.toByteArray(), "", result.getContentType(), result.getEncoding());
} else {
throw new OseeDataStoreException("Error acquiring resource: [%s] - status code: [%s]; %s",
dataStore.getLocator(), code, new String(outputStream.toByteArray()));
}
} catch (Exception ex) {
OseeExceptions.wrapAndThrow(ex);
}
}
public void purge(DataStore dataStore) throws OseeCoreException {
try {
URL url = getDeleteURL(dataStore);
String response = HttpProcessor.delete(url);
if (response != null && response.equals("Deleted: " + dataStore.getLocator())) {
dataStore.clear();
}
} catch (Exception ex) {
OseeExceptions.wrapAndThrow(ex);
}
}
}
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