org.jclouds.softlayer.handlers.SoftLayerErrorHandler.java Source code

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Here is the source code for org.jclouds.softlayer.handlers.SoftLayerErrorHandler.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.softlayer.handlers;

import java.io.IOException;

import javax.inject.Singleton;

import org.jclouds.http.HttpCommand;
import org.jclouds.http.HttpErrorHandler;
import org.jclouds.http.HttpResponse;
import org.jclouds.http.HttpResponseException;
import org.jclouds.rest.AuthorizationException;
import org.jclouds.rest.ResourceNotFoundException;
import org.jclouds.util.Strings2;

import com.google.common.base.Throwables;
import com.google.common.io.Closeables;

/**
 * This will parse and set an appropriate exception on the command object.
 * 
 * @author Adrian Cole
 * 
 */
@Singleton
public class SoftLayerErrorHandler implements HttpErrorHandler {

    public void handleError(HttpCommand command, HttpResponse response) {
        // it is important to always read fully and close streams
        String message = parseMessage(response);
        Exception exception = message != null ? new HttpResponseException(command, response, message)
                : new HttpResponseException(command, response);
        try {
            message = message != null ? message
                    : String.format("%s -> %s", command.getCurrentRequest().getRequestLine(),
                            response.getStatusLine());
            switch (response.getStatusCode()) {
            case 401:
            case 403:
                exception = new AuthorizationException(message, exception);
                break;
            case 404:
                if (!command.getCurrentRequest().getMethod().equals("DELETE")) {
                    exception = new ResourceNotFoundException(message, exception);
                }
                break;
            case 500:
                if (message != null) {
                    if (message.indexOf("Unable to determine package for") != -1) {
                        exception = new ResourceNotFoundException(message, exception);
                    } else if (message.indexOf("currently an active transaction") != -1) {
                        exception = new IllegalStateException(message, exception);
                    }
                }
            }
        } finally {
            Closeables.closeQuietly(response.getPayload());
            command.setException(exception);
        }
    }

    public String parseMessage(HttpResponse response) {
        if (response.getPayload() == null)
            return null;
        try {
            return Strings2.toString(response.getPayload());
        } catch (IOException e) {
            throw new RuntimeException(e);
        } finally {
            try {
                response.getPayload().getInput().close();
            } catch (IOException e) {
                Throwables.propagate(e);
            }
        }
    }
}