<?php

/**

 * 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.

 */

/**

 * LoggerAppenderConsole appends log events either to the standard output

 * stream (php://stdout) or the standard error stream (php://stderr).

 *

 * **Note**: Use this Appender with command-line php scripts. On web scripts

 * this appender has no effects.

 *

 * This appender uses a layout.

 *

 * ## Configurable parameters: ##

 *

 * - **target** - the target stream: "stdout" or "stderr"

 *

 * @version $Revision: 1343601 $

 * @package log4php

 * @subpackage appenders

 * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0

 * @link http://logging.apache.org/log4php/docs/appenders/console.html Appender documentation

 */

class LoggerAppenderConsole extends LoggerAppender {

    /** The standard otuput stream.  */

    const STDOUT = 'php://stdout';

    /** The standard error stream.*/

    const STDERR = 'php://stderr';

    /** The 'target' parameter. */

    protected $target = self::STDOUT;

    /**

     * Stream resource for the target stream.

     * @var resource

     */

    protected $fp = null;

    public function activateOptions() {

        $this->fp = fopen($this->target, 'w');

        if (is_resource($this->fp) && $this->layout !== null) {

            fwrite($this->fp, $this->layout->getHeader());

        }

        $this->closed = (bool)is_resource($this->fp) === false;

    }

    public function close() {

        if ($this->closed != true) {

            if (is_resource($this->fp) && $this->layout !== null) {

                fwrite($this->fp, $this->layout->getFooter());

                fclose($this->fp);

            }

            $this->closed = true;

        }

    }

    public function append(LoggerLoggingEvent $event) {

        if (is_resource($this->fp) && $this->layout !== null) {

            fwrite($this->fp, $this->layout->format($event));

        }

    }

    /**

     * Sets the 'target' parameter.

     * @param string $target

     */

    public function setTarget($target) {

        $value = trim($target);

        if ($value == self::STDOUT || strtoupper($value) == 'STDOUT') {

            $this->target = self::STDOUT;

        } elseif ($value == self::STDERR || strtoupper($value) == 'STDERR') {

            $this->target = self::STDERR;

        } else {

            $target = var_export($target);

            $this->warn("Invalid value given for 'target' property: [$target]. Property not set.");

        }

    }

    /**

     * Returns the value of the 'target' parameter.

     * @return string

     */

    public function getTarget() {

        return $this->target;

    }

}