/*
* uDig - User Friendly Desktop Internet GIS client
* http://udig.refractions.net
* (C) 2004, Refractions Research Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* (http://www.eclipse.org/legal/epl-v10.html), and the Refractions BSD
* License v1.0 (http://udig.refractions.net/files/bsd3-v10.html).
*
*/
package org.locationtech.udig.catalog.internal.oracle;
import java.io.IOException;
import java.io.Serializable;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.locks.Lock;
import org.locationtech.udig.catalog.CatalogPlugin;
import org.locationtech.udig.catalog.IResolve;
import org.locationtech.udig.catalog.IResolveChangeEvent;
import org.locationtech.udig.catalog.IResolveDelta;
import org.locationtech.udig.catalog.IService;
import org.locationtech.udig.catalog.IServiceInfo;
import org.locationtech.udig.catalog.IResolve.Status;
import org.locationtech.udig.catalog.internal.CatalogImpl;
import org.locationtech.udig.catalog.internal.ResolveChangeEvent;
import org.locationtech.udig.catalog.internal.ResolveDelta;
import org.locationtech.udig.catalog.oracle.internal.Messages;
import org.locationtech.udig.core.internal.CorePlugin;
import org.locationtech.udig.ui.ErrorManager;
import org.locationtech.udig.ui.UDIGDisplaySafeLock;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.geotools.data.oracle.OracleNGDataStoreFactory;
import org.geotools.jdbc.JDBCDataStore;
/**
* Service handle representing an oracle database.
*
* @author David Zwiers, Refractions Research
* @since 0.6
*/
public class OracleServiceImpl extends IService {
private URL url = null;
private Map<String, Serializable> params = null;
private Throwable msg = null;
private volatile JDBCDataStore ds = null;
protected Lock rLock = new UDIGDisplaySafeLock();
private static final Lock dsLock = new UDIGDisplaySafeLock();
public OracleServiceImpl( URL arg1, Map<String, Serializable> arg2 ) {
if (arg1 == null) {
String jdbc_url = OracleServiceExtension.getJDBCUrl(arg2);
try {
url = new URL(null, jdbc_url, CorePlugin.RELAXED_HANDLER);
} catch (MalformedURLException e) {
throw new NullPointerException(
"id provided and params could not be used to make one");
}
} else {
url = arg1;
}
params = arg2;
checkPort(params);
}
/*
* Required adaptions: <ul> <li>IServiceInfo.class <li>List.class <IGeoResource> </ul>
* @see org.locationtech.udig.catalog.IService#resolve(java.lang.Class,
* org.eclipse.core.runtime.IProgressMonitor)
*/
public <T> T resolve( Class<T> adaptee, IProgressMonitor monitor ) throws IOException {
if (monitor == null)
monitor = new NullProgressMonitor();
if (adaptee == null) {
throw new NullPointerException("No adaptor specified"); //$NON-NLS-1$
}
if (adaptee.isAssignableFrom(JDBCDataStore.class)) {
return adaptee.cast(getDS(monitor));
}
return super.resolve(adaptee, monitor);
}
/*
* @see org.locationtech.udig.catalog.IResolve#canResolve(java.lang.Class)
*/
public <T> boolean canResolve( Class<T> adaptee ) {
if (adaptee == null)
return false;
return (adaptee.isAssignableFrom(JDBCDataStore.class)) || super.canResolve(adaptee);
}
public void dispose( IProgressMonitor monitor ) {
super.dispose(monitor);
if( ds != null ){
ds.dispose();
}
if( members != null ){
members = null;
}
}
/*
* @see org.locationtech.udig.catalog.IResolve#members(org.eclipse.core.runtime.IProgressMonitor)
*/
public List<OracleGeoResource> resources( IProgressMonitor monitor ) throws IOException {
if (members == null) {
rLock.lock();
try {
if (members == null) {
getDS(monitor); // load ds
members = new LinkedList<OracleGeoResource>();
String[] typenames = ds.getTypeNames();
if (typenames != null){
for( int i = 0; i < typenames.length; i++ ) {
String typeName = typenames[i];
members.add(new OracleGeoResource(this, typeName));
}
}
}
} finally {
rLock.unlock();
}
}
return members;
}
private volatile List<OracleGeoResource> members = null;
@Override
public IServiceOracleInfo getInfo( IProgressMonitor monitor ) throws IOException {
return (IServiceOracleInfo) super.getInfo(monitor);
}
/*
* @see org.locationtech.udig.catalog.IService#getInfo(org.eclipse.core.runtime.IProgressMonitor)
*/
protected IServiceInfo createInfo( IProgressMonitor monitor ) throws IOException {
JDBCDataStore dataStore = getDS(monitor); // load ds
if (dataStore == null) {
return null;
}
rLock.lock();
try {
info = new IServiceOracleInfo(dataStore);
} finally {
rLock.unlock();
}
return info;
}
/*
* @see org.locationtech.udig.catalog.IService#getConnectionParams()
*/
public Map<String, Serializable> getConnectionParams() {
return params;
}
JDBCDataStore getDS( IProgressMonitor monitor ) throws IOException {
if (ds == null) {
dsLock.lock();
try {
if (ds == null) {
OracleNGDataStoreFactory dsf = new OracleNGDataStoreFactory();
checkPort(params);
assert params.get("port") instanceof String; //$NON-NLS-1$
if (dsf.canProcess(params)) {
try {
ds = dsf.createDataStore(params);
} catch (IOException e) {
msg = e;
throw e;
}
}
}
} finally {
dsLock.unlock();
}
IResolveDelta delta = new ResolveDelta(this, IResolveDelta.Kind.CHANGED);
((CatalogImpl) CatalogPlugin.getDefault().getLocalCatalog())
.fire(new ResolveChangeEvent(this, IResolveChangeEvent.Type.POST_CHANGE, delta));
}
return ds;
}
/*
* @see org.locationtech.udig.catalog.IResolve#getStatus()
*/
public Status getStatus() {
if( ds == null ){
return super.getStatus();
}
return Status.CONNECTED;
}
/*
* @see org.locationtech.udig.catalog.IResolve#getMessage()
*/
public Throwable getMessage() {
return msg;
}
/*
* @see org.locationtech.udig.catalog.IResolve#getIdentifier()
*/
public URL getIdentifier() {
return url;
}
private class IServiceOracleInfo extends IServiceInfo {
IServiceOracleInfo( JDBCDataStore resource ) {
super();
String[] tns = null;
try {
tns = resource.getTypeNames();
} catch (IOException e) {
OraclePlugin.log(null, e);
tns = new String[0];
}
keywords = new String[tns.length + 1];
System.arraycopy(tns, 0, keywords, 1, tns.length);
keywords[0] = "oracle"; //$NON-NLS-1$
try {
schema = new URI("jdbc://oracle/gml"); //$NON-NLS-1$
} catch (URISyntaxException e) {
OraclePlugin.log(null, e);
}
}
public String getDescription() {
return getIdentifier().toString();
}
public URI getSource() {
try {
return getIdentifier().toURI();
} catch (URISyntaxException e) {
// This would be bad
throw (RuntimeException) new RuntimeException().initCause(e);
}
}
public String getTitle() {
return Messages.OracleServiceImpl_oracle_spatial + getIdentifier().getHost();
}
}
/**
* Checks to make sure the port hasn't been switched from String to Integer and corrects if
* necessary.
*
* @param params Parameters object
*/
private void checkPort( Map<String, Serializable> params ) {
String portKey = OracleNGDataStoreFactory.PORT.key;
if (params != null && params.containsKey(portKey) && params.get(portKey) instanceof Integer) {
Integer val = (Integer) params.get(portKey);
params.remove(portKey);
params.put(portKey, val.toString());
}
}
}