/**
* Copyright (C) 2011 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.core.config.impl;
import java.net.URI;
import java.util.Collection;
import org.fudgemsg.FudgeField;
import org.fudgemsg.FudgeMsg;
import org.fudgemsg.mapping.FudgeDeserializer;
import com.google.common.collect.Lists;
import com.opengamma.DataNotFoundException;
import com.opengamma.core.AbstractRemoteSource;
import com.opengamma.core.change.BasicChangeManager;
import com.opengamma.core.change.ChangeManager;
import com.opengamma.core.config.ConfigSource;
import com.opengamma.id.ObjectId;
import com.opengamma.id.UniqueId;
import com.opengamma.id.VersionCorrection;
import com.opengamma.util.ArgumentChecker;
import com.opengamma.util.fudgemsg.OpenGammaFudgeContext;
import com.opengamma.util.rest.UniformInterfaceException404NotFound;
/**
* Provides remote access to a {@link ConfigSource}.
*/
public class RemoteConfigSource extends AbstractRemoteSource<ConfigItem<?>> implements ConfigSource {
/**
* The change manager.
*/
private final ChangeManager _changeManager;
/**
* Creates an instance.
*
* @param baseUri the base target URI for all RESTful web services, not null
*/
public RemoteConfigSource(final URI baseUri) {
super(baseUri);
_changeManager = new BasicChangeManager();
}
/**
* Creates an instance.
*
* @param baseUri the base target URI for all RESTful web services, not null
* @param changeManager the change manager to use, not null
*/
public RemoteConfigSource(final URI baseUri, final ChangeManager changeManager) {
super(baseUri);
ArgumentChecker.notNull(changeManager, "changeManager");
_changeManager = changeManager;
}
@SuppressWarnings("unchecked")
private <R> Collection<ConfigItem<R>> configItemCollectionResult(final FudgeMsg msg) {
final Collection<ConfigItem<R>> result = Lists.newArrayListWithCapacity(msg.getNumFields());
final FudgeDeserializer deserializer = new FudgeDeserializer(OpenGammaFudgeContext.getInstance());
for (final FudgeField field : msg) {
result.add(deserializer.fieldValueToObject(ConfigItem.class, field));
}
return result;
}
@Override
public ChangeManager changeManager() {
return _changeManager;
}
@Override
public ConfigItem<?> get(final UniqueId uniqueId) {
ArgumentChecker.notNull(uniqueId, "uniqueId");
final URI uri = DataConfigSourceResource.uriGet(getBaseUri(), uniqueId);
return accessRemote(uri).get(ConfigItem.class);
}
@Override
public ConfigItem<?> get(final ObjectId objectId, final VersionCorrection versionCorrection) {
ArgumentChecker.notNull(objectId, "objectId");
ArgumentChecker.notNull(versionCorrection, "versionCorrection");
final URI uri = DataConfigSourceResource.uriGet(getBaseUri(), objectId, versionCorrection);
return accessRemote(uri).get(ConfigItem.class);
}
//-------------------------------------------------------------------------
@Override
@SuppressWarnings("unchecked")
public <R> R getConfig(final Class<R> clazz, final UniqueId uniqueId) {
final Object value = get(uniqueId).getValue();
if (clazz.isAssignableFrom(value.getClass())) {
return (R) value;
} else {
throw new IllegalArgumentException("The requested object is " + value.getClass() + ", not " + clazz);
}
}
@Override
@SuppressWarnings("unchecked")
public <R> R getConfig(final Class<R> clazz, final ObjectId objectId, final VersionCorrection versionCorrection) {
final Object value = get(objectId, versionCorrection).getValue();
if (clazz.isAssignableFrom(value.getClass())) {
return (R) value;
} else {
throw new IllegalArgumentException("The requested object is " + value.getClass() + ", not " + clazz);
}
}
//-------------------------------------------------------------------------
@Override
public <R> R getSingle(final Class<R> clazz, final String configName, final VersionCorrection versionCorrection) {
ArgumentChecker.notNull(clazz, "clazz");
ArgumentChecker.notNull(configName, "configName");
ArgumentChecker.notNull(versionCorrection, "versionCorrection");
try {
final URI uri = DataConfigSourceResource.uriSearchSingle(getBaseUri(), configName, versionCorrection, clazz);
return accessRemote(uri).get(clazz);
} catch (DataNotFoundException ex) {
return null;
} catch (UniformInterfaceException404NotFound ex) {
return null;
}
}
@Override
public <R> Collection<ConfigItem<R>> get(final Class<R> clazz, final String configName, final VersionCorrection versionCorrection) {
ArgumentChecker.notNull(clazz, "clazz");
ArgumentChecker.notNull(configName, "configName");
ArgumentChecker.notNull(versionCorrection, "versionCorrection");
final URI uri = DataConfigSourceResource.uriGet(getBaseUri(), configName, versionCorrection, clazz);
return configItemCollectionResult(accessRemote(uri).get(FudgeMsg.class));
}
@Override
public <R> R getLatestByName(final Class<R> clazz, final String name) {
return getSingle(clazz, name, VersionCorrection.LATEST);
}
@Override
public <R> Collection<ConfigItem<R>> getAll(final Class<R> clazz, final VersionCorrection versionCorrection) {
ArgumentChecker.notNull(clazz, "clazz");
ArgumentChecker.notNull(versionCorrection, "versionCorrection");
final URI uri = DataConfigSourceResource.uriSearch(getBaseUri(), clazz, versionCorrection);
return configItemCollectionResult(accessRemote(uri).get(FudgeMsg.class));
}
}