/*
* Copyright (c) 2002-2012 Alibaba Group Holding Limited.
* All rights reserved.
*
* 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 com.alibaba.antx.config.wizard.text;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import com.alibaba.antx.config.ConfigConstant;
import com.alibaba.antx.config.ConfigSettings;
import com.alibaba.antx.config.descriptor.ConfigDescriptor;
import com.alibaba.antx.config.entry.ConfigEntry;
import com.alibaba.antx.config.props.PropertiesSet;
public class ConfigWizardLoader {
private final ConfigSettings settings;
private final List configEntries;
private final ConfigDescriptor inlineDescriptor;
public ConfigWizardLoader(ConfigSettings settings, List configEntries) {
this.settings = settings;
this.configEntries = configEntries;
this.inlineDescriptor = null;
}
public ConfigWizardLoader(ConfigSettings settings, ConfigDescriptor inlineDescription) {
this.settings = settings;
this.configEntries = null;
this.inlineDescriptor = inlineDescription;
}
public void loadAndStart() {
// 使用wizard验证并和用户交互
ConfigDescriptor[] descriptors = getAllDescriptors();
PropertiesSet props = settings.getPropertiesSet();
ConfigWizard wizard = new ConfigWizard(descriptors, props, settings.getCharset());
boolean valid = wizard.validate();
String interactiveMode = settings.getInteractiveMode();
boolean interactiveAuto = ConfigConstant.INTERACTIVE_AUTO.equals(interactiveMode);
boolean interactiveOn = ConfigConstant.INTERACTIVE_ON.equals(interactiveMode);
if (interactiveOn || interactiveAuto && !valid) {
if (!valid) {
StringBuffer confirm = new StringBuffer();
confirm.append("╭───────────────────────┈┈┈┈\n");
confirm.append("│\n");
confirm.append("│ 您的配置文件需要被更新：\n");
confirm.append("│\n");
confirm.append("│ ").append(props.getUserPropertiesFile().getURI()).append("\n");
confirm.append("│\n");
confirm.append("│ 这个文件包括了您个人的特殊设置，\n");
confirm.append("│ 包括服务器端口、您的邮件地址等内容。\n");
confirm.append("│\n");
confirm.append("└───────┈┈┈┈┈┈┈┈┈┈┈\n");
confirm.append("\n").append(" 如果不更新此文件，可能会导致配置文件的内容不完整。\n");
confirm.append(" 您需要现在更新此文件吗?");
wizard.setConfirmMessage(confirm.toString());
}
wizard.start();
valid = wizard.validate();
}
// 设置valid变量为true，或抛出异常
if (!valid) {
throw new ConfigWizardException("因为配置文件“" + props.getUserPropertiesFile().getURI() + "”未准备好，所以无法继续下去！");
}
}
/**
* 取得所有的descriptors。
*
* @return 所有descriptors的数组
*/
private ConfigDescriptor[] getAllDescriptors() {
if (configEntries != null) {
List descriptors = new ArrayList();
for (Iterator i = configEntries.iterator(); i.hasNext(); ) {
ConfigEntry entry = (ConfigEntry) i.next();
addConfigEntryRecursive(entry, descriptors);
}
return (ConfigDescriptor[]) descriptors.toArray(new ConfigDescriptor[descriptors.size()]);
} else if (inlineDescriptor != null) {
return new ConfigDescriptor[] { inlineDescriptor };
} else {
return new ConfigDescriptor[0];
}
}
/**
* 将entry及所有子entry中的descriptors加入列表中。
*
* @param entry config entry
* @param descriptors descriptors列表
*/
private void addConfigEntryRecursive(ConfigEntry entry, List descriptors) {
if (entry == null) {
return;
}
ConfigDescriptor[] entryDescriptors = entry.getGenerator().getConfigDescriptors();
for (ConfigDescriptor entryDescriptor : entryDescriptors) {
descriptors.add(entryDescriptor);
}
ConfigEntry[] subEntries = entry.getSubEntries();
for (ConfigEntry subEntrie : subEntries) {
addConfigEntryRecursive(subEntrie, descriptors);
}
}
}