/*
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.rpc.server;
import com.google.gwt.rpc.client.ast.CommandSink;
import com.google.gwt.rpc.client.impl.SimplePayloadSink;
import com.google.gwt.user.client.rpc.SerializationException;
import com.google.gwt.user.server.rpc.impl.SerializabilityUtil;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.lang.reflect.Field;
/**
* A ClientOracle that is used for hosted-mode clients. This type only
* implements a limited subset of the ClientOracle functionality.
*/
public final class HostedModeClientOracle extends ClientOracle {
@Override
public CommandSink createCommandSink(OutputStream out) throws IOException {
final BufferedWriter buffer = new BufferedWriter(new OutputStreamWriter(
out, "UTF-8"));
return new SimplePayloadSink(buffer) {
@Override
public void finish() throws SerializationException {
super.finish();
try {
buffer.flush();
} catch (IOException e) {
throw new SerializationException("Could not flush buffer", e);
}
}
};
}
/**
* Unimplemented.
*/
@Override
public String createUnusedIdent(String ident) {
return unimplemented();
}
@Override
public CastableTypeData getCastableTypeData(Class<?> clazz) {
return unimplemented();
}
/**
* Unimplemented.
*/
@Override
public String getFieldId(Class<?> clazz, String fieldName) {
return unimplemented();
}
/**
* Unimplemented.
*/
@Override
public String getFieldId(Enum<?> value) {
return unimplemented();
}
/**
* Unimplemented.
*/
@Override
public String getFieldId(String className, String fieldName) {
return unimplemented();
}
@Override
public Pair<Class<?>, String> getFieldName(Class<?> clazz, String fieldId) {
while (clazz != null) {
try {
clazz.getDeclaredField(fieldId);
return new Pair<Class<?>, String>(clazz, fieldId);
} catch (SecurityException e) {
// Fall through
} catch (NoSuchFieldException e) {
// Fall through
}
clazz = clazz.getSuperclass();
}
return null;
}
/**
* Unimplemented.
*/
@Override
public String getMethodId(Class<?> clazz, String methodName, Class<?>... args) {
return unimplemented();
}
/**
* Unimplemented.
*/
@Override
public String getMethodId(String className, String methodName,
String... jsniArgTypes) {
return unimplemented();
}
/**
* Falls back to reflectively analyzing the provided class.
*/
@Override
public Field[] getOperableFields(Class<?> clazz) {
return SerializabilityUtil.applyFieldSerializationPolicy(clazz);
}
/**
* Unimplemented.
*/
@Override
public String getRuntimeTypeId(Class<?> clazz) {
return unimplemented();
}
/**
* Unimplemented.
*/
@Override
public String getJsSymbolName(Class<?> clazz) {
return unimplemented();
}
/**
* Unimplemented.
*/
@Override
public String getTypeName(String seedName) {
return seedName;
}
/**
* Unimplemented.
*/
@Override
public boolean isScript() {
return false;
}
private <T> T unimplemented() {
throw new RuntimeException("Not supported in Development Mode");
}
}