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/**
 * Copyright (c) 2015 Netflix, Inc.  All rights reserved.
 */
package com.netflix.msl.msg;

import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import com.netflix.msl.crypto.ICryptoContext;
import com.netflix.msl.keyx.KeyRequestData;
import com.netflix.msl.tokens.MslUser;
import com.netflix.msl.userauth.UserAuthenticationData;

/**
 * A trusted services network message context used to receive client
 * messages.
 * 
 * @author Wesley Miaw 
 */
public class ReceiveMessageContext implements MessageContext {
    /**
     * Create a new receive message context.
     * 
     * @param cryptoContext default service token crypto context.
     * @param dbgCtx optional message debug context. May be {@code null}.
     */
    public ReceiveMessageContext(final ICryptoContext cryptoContext, final MessageDebugContext dbgCtx) {
        final Map cryptoContexts = new HashMap();
        cryptoContexts.put("", cryptoContext);
        this.cryptoContexts = Collections.unmodifiableMap(cryptoContexts);
        this.dbgCtx = dbgCtx;
    }
    
    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#getCryptoContexts()
     */
    @Override
    public Map getCryptoContexts() {
        return cryptoContexts;
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#getRemoteEntityIdentity()
     */
    @Override
    public String getRemoteEntityIdentity() {
        return null;
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#isEncrypted()
     */
    @Override
    public boolean isEncrypted() {
        return false;
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#isIntegrityProtected()
     */
    @Override
    public boolean isIntegrityProtected() {
        return false;
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#isNonReplayable()
     */
    @Override
    public boolean isNonReplayable() {
        return false;
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#isRequestingTokens()
     */
    @Override
    public boolean isRequestingTokens() {
        return false;
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#getUserId()
     */
    @Override
    public String getUserId() {
        return null;
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#getUserAuthData(com.netflix.msl.msg.MessageContext.ReauthCode, boolean, boolean)
     */
    @Override
    public UserAuthenticationData getUserAuthData(final ReauthCode reauthCode, final boolean renewable, final boolean required) {
        return null;
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#getUser()
     */
    @Override
    public MslUser getUser() {
        return null;
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#getKeyRequestData()
     */
    @Override
    public Set getKeyRequestData() {
        return Collections.emptySet();
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#updateServiceTokens(com.netflix.msl.msg.MessageServiceTokenBuilder, boolean)
     */
    @Override
    public void updateServiceTokens(final MessageServiceTokenBuilder builder, final boolean handshake) {
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#write(com.netflix.msl.msg.MessageOutputStream)
     */
    @Override
    public void write(final MessageOutputStream output) throws IOException {
    }

    /* (non-Javadoc)
     * @see com.netflix.msl.msg.MessageContext#getDebugContext()
     */
    @Override
    public MessageDebugContext getDebugContext() {
        return dbgCtx;
    }

    /** Service token crypto context. */
    private final Map cryptoContexts;
    /** Message debug context. */
    private final MessageDebugContext dbgCtx;
}