first commit

lib/Log/LogFactory.php

@@ -0,0 +1,88 @@
+<?php
+
+namespace Yeepay\Yop\Sdk\Log;
+
+use Psr\Log\LoggerInterface;
+
+/**
+ * The global LogFactory for the SDK.
+ */
+class LogFactory
+{
+
+    /**
+     * @var LogFactoryInterface the LogFactory instance
+     */
+    private static $instance;
+
+    private static $logLevel;
+
+    private static $logLevelMapping;
+
+    public static function __init()
+    {
+        LogFactory::$instance        = new NullLogFactory();
+        LogFactory::$logLevelMapping = [
+            'emergency' => 0,
+            'alert'     => 1,
+            'critical'  => 2,
+            'error'     => 3,
+            'warning'   => 4,
+            'notice'    => 5,
+            'info'      => 6,
+            'debug'     => 7,
+        ];
+        LogFactory::$logLevel        = 6;
+    }
+
+    /**
+     * @param  LogFactoryInterface  $logFactory  the logFactory interface.
+     * @throws \InvalidArgumentException if $logFactory is null.
+     */
+    public static function setInstance(LogFactoryInterface $logFactory)
+    {
+        if ($logFactory === null) {
+            throw new \InvalidArgumentException(
+                '$logFactory should not be null.'
+            );
+        }
+        LogFactory::$instance = $logFactory;
+    }
+
+    /**
+     * @param  string  $logLevel  the log level. The value can be 'emergency',
+     *     'alert', 'critical', 'error', 'warning', 'notice', 'info', or
+     *     'debug'.
+     * @throws \InvalidArgumentException if no such a log level is defined.
+     */
+    public static function setLogLevel($logLevel)
+    {
+        if (isset(LogFactory::$logLevelMapping[$logLevel])) {
+            LogFactory::$logLevel = LogFactory::$logLevelMapping[$logLevel];
+        } else {
+            throw new \InvalidArgumentException(
+                "Unrecognized log level $logLevel"
+            );
+        }
+    }
+
+    /**
+     * @return boolean true if the debug log level is enabled.
+     */
+    public static function isDebugEnabled()
+    {
+        return LogFactory::$logLevel >= 7;
+    }
+
+    /**
+     * @param $name string the name of logger
+     * @return LoggerInterface the Logger instance
+     */
+    public static function getLogger($name)
+    {
+        return LogFactory::$instance->getLogger($name);
+    }
+
+}
+
+LogFactory::__init();

lib/Log/LogFactoryInterface.php

@@ -0,0 +1,31 @@
+<?php
+/*
+* Copyright 2014 Baidu, Inc.
+*
+* 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.
+*/
+
+namespace Yeepay\Yop\Sdk\Log;
+
+use Psr\Log\LoggerInterface;
+
+interface LogFactoryInterface
+{
+
+    /**
+     * @param $name string
+     * @return LoggerInterface
+     */
+    public function getLogger($name);
+
+}

lib/Log/MonoLogFactory.php

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+<?php
+/*
+* Copyright 2014 Baidu, Inc.
+*
+* 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.
+*/
+
+namespace Yeepay\Yop\Sdk\Log;
+
+use Monolog\Logger;
+
+/**
+ * A LogFactory for Monolog.
+ */
+class MonoLogFactory implements LogFactoryInterface
+{
+
+    /**
+     * @var array
+     */
+    private $handlers;
+
+    /**
+     * Constructs a new MonoLogFactory instance.
+     * @param  array  $handlers  log handlers
+     */
+    public function __construct(array $handlers = null)
+    {
+        $this->handlers = $handlers;
+    }
+
+    /**
+     * Returns \Monolog\Logger.
+     * @param  string  $name  the name of logger
+     * @return \Monolog\Logger a monolog logger instance
+     */
+    public function getLogger($name)
+    {
+        $logger = new Logger($name);
+        if ($this->handlers !== null) {
+            foreach ($this->handlers as $handler) {
+                $logger->pushHandler($handler);
+            }
+        }
+
+        return $logger;
+    }
+
+}

lib/Log/NullLogFactory.php

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+<?php
+/*
+* Copyright 2014 Baidu, Inc.
+*
+* 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.
+*/
+
+namespace Yeepay\Yop\Sdk\Log;
+
+use Psr\Log\NullLogger;
+
+/**
+ * A LogFactory that returns a NullLogger.
+ */
+class NullLogFactory implements LogFactoryInterface
+{
+
+    /**
+     * Always returns a NullLogger.
+     * @param  string  $name  the name of logger
+     * @return Psr\Log\NullLogger a NullLogger
+     */
+    public function getLogger($name)
+    {
+        return new NullLogger();
+    }
+
+}