private void printGroup() {
if (group.getDescription() != null) {
println(" " + group.getDescription() + " (? - 该值在用户配置文件中不存在，* - 必填项，S - 覆盖共享默认值，s - 共享值)");
} else {
println(" (? - 该值在用户配置文件中不存在，* - 必填项，S - 覆盖共享默认值，s - 共享值)");
}
println();
// 找出最长的名称和值
int maxLength = -1;
int maxLengthValue = -1;
for (ConfigProperty prop : props) {
int length = prop.getName().length();
if (length > maxLength && length < MAX_ALIGN) {
maxLength = length;
}
}
for (ConfigProperty prop : props) {
String value = getPropertyValue(prop, true);
int length =
Math.max(prop.getName().length(), maxLength)
+ (value == null ? 0 : " = ".length() + value.length());
if (length > maxLengthValue && length < MAX_ALIGN * 2) {
maxLengthValue = length;
}
}
for (int i = 0; i < props.length; i++) {
ConfigProperty prop = props[i];
StringBuffer buffer = new StringBuffer();
// 如果项目在配置文件中不存在，则显示?
boolean absent = !getKeys().contains(prop.getName());
// 如果是必填项, 则显示*号
boolean required = prop.isRequired();
// 如果项目定义在shared properties中，则显示S
boolean shared = propSet.isShared(prop.getName());
if (shared) {
if (absent) {
buffer.append("s");
} else {
buffer.append("S");
}
} else {
if (absent) {
buffer.append("?");
} else {
buffer.append(" ");
}
}
if (required) {
buffer.append("* ");
} else {
buffer.append(" ");
}
// 显示property序号
buffer.append(i + 1).append(" - ");
// 显示property名称
buffer.append(prop.getName());
// 显示property值
String value = getPropertyValue(prop, true);
if (value != null) {
for (int j = 0; j < maxLength - prop.getName().length(); j++) {
buffer.append(' ');
}
buffer.append(" = ").append(value);
}
// 显示property描述
if (prop.getDescription() != null) {
int length =
value == null
? prop.getName().length()
: Math.max(prop.getName().length(), maxLength) + " = ".length() + value.length();
for (int j = 0; j < maxLengthValue - length; j++) {
buffer.append(' ');
}
buffer.append(" # ").append(prop.getDescription());
}
// 如果值是表达式，则同时显示表达式的计算值
String evaluatedValue = evaluatePropertyValue(prop, true);
if (evaluatedValue != null && !ObjectUtil.equals(value, evaluatedValue)) {
buffer.append("\n");
for (int j = 0; j < maxLength; j++) {
buffer.append(' ');
}
buffer.append(" (").append(evaluatedValue).append(")");
if (i < props.length - 1) {
buffer.append("\n");
}
}
println(buffer);
}
println();
}
