/*
* 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.linker;
import com.google.gwt.core.ext.LinkerContext;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.linker.AbstractLinker;
import com.google.gwt.core.ext.linker.ArtifactSet;
import com.google.gwt.core.ext.linker.CompilationResult;
import com.google.gwt.core.ext.linker.LinkerOrder;
import com.google.gwt.core.ext.linker.Shardable;
import com.google.gwt.core.ext.linker.SymbolData;
import com.google.gwt.core.ext.linker.SyntheticArtifact;
import com.google.gwt.core.ext.linker.LinkerOrder.Order;
import com.google.gwt.rpc.server.WebModeClientOracle.Builder;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Exports data required by server components for directly-evalable RPC.
*/
@LinkerOrder(Order.PRE)
@Shardable
public class ClientOracleLinker extends AbstractLinker {
private static final String SUFFIX = ".gwt.rpc";
@Override
public String getDescription() {
return "deRPC linker";
}
@Override
public ArtifactSet link(TreeLogger logger, LinkerContext context,
ArtifactSet artifacts, boolean onePermutation)
throws UnableToCompleteException {
if (onePermutation) {
artifacts = new ArtifactSet(artifacts);
Map<String, List<String>> allSerializableFields = new HashMap<String, List<String>>();
for (RpcDataArtifact data : artifacts.find(RpcDataArtifact.class)) {
allSerializableFields.putAll(data.getOperableFields());
}
for (CompilationResult result : artifacts.find(CompilationResult.class)) {
Builder builder = new Builder();
for (Map.Entry<String, List<String>> entry : allSerializableFields.entrySet()) {
builder.setSerializableFields(entry.getKey(), entry.getValue());
}
for (SymbolData symbolData : result.getSymbolMap()) {
builder.add(symbolData.getSymbolName(), symbolData.getJsniIdent(),
symbolData.getClassName(), symbolData.getMemberName(),
symbolData.getTypeId());
}
ByteArrayOutputStream out = new ByteArrayOutputStream();
try {
builder.getOracle().store(out);
} catch (IOException e) {
// Should generally not happen
logger.log(TreeLogger.ERROR, "Unable to store deRPC data", e);
throw new UnableToCompleteException();
}
SyntheticArtifact a = emitBytes(logger, out.toByteArray(),
result.getStrongName() + SUFFIX);
artifacts.add(a);
}
}
return artifacts;
}
}