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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.apache.cxf.jaxrs.impl;

import java.io.InputStream;
import java.net.URI;
import java.util.List;
import java.util.Map;

import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Request;
import javax.ws.rs.core.SecurityContext;
import javax.ws.rs.core.UriInfo;

import org.apache.cxf.jaxrs.utils.HttpUtils;
import org.apache.cxf.message.Message;

public class ContainerRequestContextImpl extends AbstractRequestContextImpl 
    implements ContainerRequestContext {

    private static final String ENDPOINT_ADDRESS_PROPERTY = "org.apache.cxf.transport.endpoint.address";
    
    private boolean preMatch;
    public ContainerRequestContextImpl(Message message, boolean preMatch, boolean responseContext) {
        super(message, responseContext);
        this.preMatch = preMatch;
    }

    @Override
    public InputStream getEntityStream() {
        return m.get(InputStream.class);
    }


    @Override
    public Request getRequest() {
        return new RequestImpl(m);
    }

    @Override
    public SecurityContext getSecurityContext() {
        return new SecurityContextImpl(m);
    }

    @Override
    public UriInfo getUriInfo() {
        return new UriInfoImpl(m);
    }

    @Override
    public boolean hasEntity() {
        return getEntityStream() != null;
    }

    @Override
    public void setEntityStream(InputStream is) {
        checkContext();
        m.setContent(InputStream.class, is);
    }

    @SuppressWarnings("unchecked")
    public MultivaluedMap getHeaders() {
        h = null;
        return new MetadataMap(
            (Map>)m.get(Message.PROTOCOL_HEADERS), false, false, true);
    }


    @Override
    public void setRequestUri(URI requestUri) throws IllegalStateException {
        if (requestUri.isAbsolute()) {
            String baseUriString = new UriInfoImpl(m).getBaseUri().toString();
            String requestUriString = new UriInfoImpl(m).getBaseUri().toString();
            if (!requestUriString.startsWith(baseUriString)) {
                setRequestUri(requestUri, URI.create("/"));
                return;
            } else {
                requestUriString = requestUriString.substring(baseUriString.length());
                if (requestUriString.isEmpty()) {
                    requestUriString = "/";
                }
                requestUri = URI.create(requestUriString);
            }
                
        }
        doSetRequestUri(requestUri);
    }
    
    public void doSetRequestUri(URI requestUri) throws IllegalStateException {
        if (!preMatch) {
            throw new IllegalStateException();
        }
        HttpUtils.resetRequestURI(m, requestUri.toString());
    }

    @Override
    public void setRequestUri(URI baseUri, URI requestUri) throws IllegalStateException {
        doSetRequestUri(requestUri);
        Object servletRequest = m.get("HTTP.REQUEST");
        if (servletRequest != null) {
            ((javax.servlet.http.HttpServletRequest)servletRequest)
                .setAttribute(ENDPOINT_ADDRESS_PROPERTY, baseUri.toString());
        }
    }

    @Override
    public void setSecurityContext(SecurityContext sc) {
        m.put(SecurityContext.class, sc);
    }

}