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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2018 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 * Licensed 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 io.undertow.websockets.jsr;

import java.io.IOException;
import java.io.Writer;

import javax.websocket.RemoteEndpoint;

public class WebSocketWriter extends Writer {

    final WebSocketSessionRemoteEndpoint.Basic basic;
    private boolean closed;

    public WebSocketWriter(RemoteEndpoint.Basic basic) {
        this.basic = basic;
    }

    @Override
    public void write(char[] cbuf, int off, int len) throws IOException {
        if(closed) {
            throw new IOException("closed");
        }
        basic.sendText(new String(cbuf, off, len), false);
    }

    @Override
    public void flush() throws IOException {

    }

    @Override
    public void close() throws IOException {
        if(!closed) {
            closed = true;
            basic.sendText("", true);
        }
    }
}