/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.jooby.internal.parser;
import java.util.Map;
import org.jooby.Mutant;
import org.jooby.Parser;
import org.jooby.Parser.Builder;
import org.jooby.Parser.Callback;
import org.jooby.Upload;
import org.jooby.internal.BodyReferenceImpl;
import org.jooby.internal.EmptyBodyReference;
import org.jooby.internal.StrParamReferenceImpl;
import org.jooby.internal.UploadParamReferenceImpl;
import com.google.common.collect.ImmutableMap;
import com.google.inject.TypeLiteral;
@SuppressWarnings("rawtypes")
public class ParserBuilder implements Parser.Builder {
private ImmutableMap.Builder<TypeLiteral<?>, Parser.Callback> strategies = ImmutableMap
.builder();
public final TypeLiteral<?> toType;
private final TypeLiteral<?> type;
public final Object value;
private Parser.Context ctx;
public ParserBuilder(final Parser.Context ctx, final TypeLiteral<?> toType, final Object value) {
this.ctx = ctx;
this.toType = toType;
this.type = typeOf(value);
this.value = value;
}
private TypeLiteral<?> typeOf(final Object value) {
if (value instanceof Map) {
return TypeLiteral.get(Map.class);
}
return TypeLiteral.get(value.getClass());
}
@Override
public Builder body(final Callback<Parser.BodyReference> callback) {
strategies.put(TypeLiteral.get(BodyReferenceImpl.class), callback);
strategies.put(TypeLiteral.get(EmptyBodyReference.class), callback);
return this;
}
@Override
public Builder ifbody(final Callback<Parser.BodyReference> callback) {
return body(callback);
}
@Override
public Builder param(final Callback<Parser.ParamReference<String>> callback) {
strategies.put(TypeLiteral.get(StrParamReferenceImpl.class), callback);
return this;
}
@Override
public Builder ifparam(final Callback<Parser.ParamReference<String>> callback) {
return param(callback);
}
@Override
public Builder params(final Callback<Map<String, Mutant>> callback) {
strategies.put(TypeLiteral.get(Map.class), callback);
return this;
}
@Override
public Builder ifparams(final Callback<Map<String, Mutant>> callback) {
return params(callback);
}
@Override
public Builder upload(final Callback<Parser.ParamReference<Upload>> callback) {
strategies.put(TypeLiteral.get(UploadParamReferenceImpl.class), callback);
return this;
}
@Override
public Builder ifupload(final Callback<Parser.ParamReference<Upload>> callback) {
return upload(callback);
}
@SuppressWarnings("unchecked")
public Object parse() throws Throwable {
Map<TypeLiteral<?>, Callback> map = strategies.build();
Callback callback = map.get(type);
if (callback == null) {
return ctx.next(toType, value);
}
return callback.invoke(value);
}
}