org.sakaiproject.nakamura.proxy.ProxyResponseImpl.java Source code

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Here is the source code for org.sakaiproject.nakamura.proxy.ProxyResponseImpl.java

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/**
 * Licensed to the Sakai Foundation (SF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The SF 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.sakaiproject.nakamura.proxy;

import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpMethod;
import org.sakaiproject.nakamura.api.proxy.ProxyResponse;

import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

/**
 * Implements the ProxyResponse holder by wrapping the HttpMethod request.
 */
public class ProxyResponseImpl implements ProxyResponse {

    private int result;
    private HttpMethod method;
    private Map<String, String[]> headers = new HashMap<String, String[]>();
    private String cause;

    /**
     * @param result
     * @param method
     */
    public ProxyResponseImpl(int result, HttpMethod method) {
        this.result = result;
        this.method = method;

        for (Header header : method.getResponseHeaders()) {
            String name = header.getName();
            String[] values = headers.get(name);
            if (values == null) {
                values = new String[] { header.getValue() };
            } else {
                String[] newValues = new String[values.length + 1];
                System.arraycopy(values, 0, newValues, 0, values.length);
                newValues[values.length] = header.getValue();
                values = newValues;
            }

            boolean add = true;
            // We ignore JSESSIONID cookies coming back.
            if (name.toLowerCase().equals("set-cookie")) {
                for (String v : values) {
                    if (v.contains("JSESSIONID")) {
                        add = false;
                        break;
                    }
                }
            }
            if (add) {
                headers.put(name, values);
            }
        }
    }

    /**
     * @param scPreconditionFailed
     * @param string
     * @param method2
     */
    public ProxyResponseImpl(int result, String cause, HttpMethod method) {
        this(result, method);
        this.cause = cause;
    }

    /**
     * {@inheritDoc}
     * @see org.sakaiproject.nakamura.api.proxy.ProxyResponse#getResultCode()
     */
    public int getResultCode() {
        return result;
    }

    /**
     * {@inheritDoc}
     * @see org.sakaiproject.nakamura.api.proxy.ProxyResponse#getResponseHeaders()
     */
    public Map<String, String[]> getResponseHeaders() {
        return headers;
    }

    /**
     * {@inheritDoc}
     * @see org.sakaiproject.nakamura.api.proxy.ProxyResponse#getResponseBody()
     */
    public byte[] getResponseBody() throws IOException {
        return method.getResponseBody();
    }

    /**
     * {@inheritDoc}
     * @see org.sakaiproject.nakamura.api.proxy.ProxyResponse#getResponseBodyAsInputStream()
     */
    public InputStream getResponseBodyAsInputStream() throws IOException {
        return method.getResponseBodyAsStream();
    }

    /**
     * {@inheritDoc}
     * @see org.sakaiproject.nakamura.api.proxy.ProxyResponse#getResponseBodyAsString()
     */
    public String getResponseBodyAsString() throws IOException {
        return method.getResponseBodyAsString();
    }

    /**
     * {@inheritDoc}
     * 
     * @see org.sakaiproject.nakamura.api.proxy.ProxyResponse#close()
     */
    public void close() {
        method.releaseConnection();
        method = null;
    }

    /**
     * @return the cause
     */
    public String getCause() {
        return cause;
    }

}