org.jclouds.openstack.keystone.v2_0.binders.BindAuthToJsonPayload.java Source code

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Here is the source code for org.jclouds.openstack.keystone.v2_0.binders.BindAuthToJsonPayload.java

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/*
 * 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.jclouds.openstack.keystone.v2_0.binders;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;

import java.util.Map;

import javax.inject.Inject;
import javax.inject.Singleton;

import org.jclouds.http.HttpRequest;
import org.jclouds.json.Json;
import org.jclouds.openstack.keystone.v2_0.config.CredentialType;
import org.jclouds.rest.MapBinder;
import org.jclouds.rest.binders.BindToJsonPayload;
import org.jclouds.rest.internal.GeneratedHttpRequest;

import com.google.common.base.Predicates;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableMap.Builder;
import com.google.common.collect.Iterables;

/**
 * 
 * @author Adrian Cole
 * 
 */
@Singleton
public class BindAuthToJsonPayload extends BindToJsonPayload implements MapBinder {
    @Inject
    public BindAuthToJsonPayload(Json jsonBinder) {
        super(jsonBinder);
    }

    @Override
    public <R extends HttpRequest> R bindToRequest(R request, Object toBind) {
        throw new IllegalStateException("BindAuthToJsonPayload needs parameters");
    }

    protected void addCredentialsInArgsOrNull(GeneratedHttpRequest gRequest, Builder<String, Object> builder) {
        for (Object arg : Iterables.filter(gRequest.getInvocation().getArgs(), Predicates.notNull())) {
            if (arg.getClass().isAnnotationPresent(CredentialType.class)) {
                builder.put(arg.getClass().getAnnotation(CredentialType.class).value(), arg);
            }
        }
    }

    @Override
    public <R extends HttpRequest> R bindToRequest(R request, Map<String, Object> postParams) {
        checkArgument(checkNotNull(request, "request") instanceof GeneratedHttpRequest,
                "this binder is only valid for GeneratedHttpRequests!");
        GeneratedHttpRequest gRequest = (GeneratedHttpRequest) request;

        Builder<String, Object> builder = ImmutableMap.builder();
        addCredentialsInArgsOrNull(gRequest, builder);
        // TODO: is tenantName permanent? or should we switch to tenantId at some point. seems most tools
        // still use tenantName
        if (!Strings.isNullOrEmpty((String) postParams.get("tenantName")))
            builder.put("tenantName", postParams.get("tenantName"));
        else if (!Strings.isNullOrEmpty((String) postParams.get("tenantId")))
            builder.put("tenantId", postParams.get("tenantId"));
        return super.bindToRequest(request, ImmutableMap.of("auth", builder.build()));
    }

}