library/log4php/LoggerConfigurable.php
author Markus Bröker<broeker.markus@googlemail.com>
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<?php
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/**
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 * Licensed to the Apache Software Foundation (ASF) under one or more
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 * contributor license agreements. See the NOTICE file distributed with
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 * this work for additional information regarding copyright ownership.
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 * The ASF licenses this file to You under the Apache License, Version 2.0
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 * (the "License"); you may not use this file except in compliance with
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 * the License. You may obtain a copy of the License at
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 *
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 *       http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 *
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 * @package log4php
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 */
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/**
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 * A base class from which all classes which have configurable properties are
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 * extended. Provides a generic setter with integrated validation.
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 *
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 * @package log4php
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 * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
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 * @version $Revision $
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 * @since 2.2
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 */
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abstract class LoggerConfigurable {
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    /** Setter function for boolean type. */
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    protected function setBoolean($property, $value) {
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        try {
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            $this->$property = LoggerOptionConverter::toBooleanEx($value);
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        } catch (Exception $ex) {
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            $value = var_export($value, true);
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            $this->warn("Invalid value given for '$property' property: [$value]. Expected a boolean value. Property not changed.");
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        }
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    }
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    /** Setter function for integer type. */
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    protected function setInteger($property, $value) {
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        try {
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            $this->$property = LoggerOptionConverter::toIntegerEx($value);
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        } catch (Exception $ex) {
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            $value = var_export($value, true);
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            $this->warn("Invalid value given for '$property' property: [$value]. Expected an integer. Property not changed.");
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        }
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    }
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    /** Setter function for LoggerLevel values. */
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    protected function setLevel($property, $value) {
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        try {
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            $this->$property = LoggerOptionConverter::toLevelEx($value);
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        } catch (Exception $ex) {
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            $value = var_export($value, true);
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            $this->warn("Invalid value given for '$property' property: [$value]. Expected a level value. Property not changed.");
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        }
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    }
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    /** Setter function for integer type. */
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    protected function setPositiveInteger($property, $value) {
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        try {
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            $this->$property = LoggerOptionConverter::toPositiveIntegerEx($value);
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        } catch (Exception $ex) {
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            $value = var_export($value, true);
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            $this->warn("Invalid value given for '$property' property: [$value]. Expected a positive integer. Property not changed.");
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        }
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    }
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    /** Setter for file size. */
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    protected function setFileSize($property, $value) {
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        try {
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            $this->$property = LoggerOptionConverter::toFileSizeEx($value);
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        } catch (Exception $ex) {
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            $value = var_export($value, true);
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            $this->warn("Invalid value given for '$property' property: [$value]. Expected a file size value.  Property not changed.");
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        }
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    }
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    /** Setter function for numeric type. */
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    protected function setNumeric($property, $value) {
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        try {
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            $this->$property = LoggerOptionConverter::toNumericEx($value);
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        } catch (Exception $ex) {
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            $value = var_export($value, true);
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            $this->warn("Invalid value given for '$property' property: [$value]. Expected a number. Property not changed.");
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        }
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    }
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    /** Setter function for string type. */
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    protected function setString($property, $value, $nullable = false) {
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        if ($value === null) {
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            if ($nullable) {
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                $this->$property = null;
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            } else {
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                $this->warn("Null value given for '$property' property. Expected a string. Property not changed.");
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            }
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        } else {
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            try {
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                $value = LoggerOptionConverter::toStringEx($value);
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                $this->$property = LoggerOptionConverter::substConstants($value);
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            } catch (Exception $ex) {
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                $value = var_export($value, true);
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                $this->warn("Invalid value given for '$property' property: [$value]. Expected a string. Property not changed.");
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            }
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        }
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    }
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    /** Triggers a warning. */
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    protected function warn($message) {
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        $class = get_class($this);
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        trigger_error("log4php: $class: $message", E_USER_WARNING);
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    }
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}