本文整理了Java中org.crsh.util.Utils.interpolate()方法的一些代码示例，展示了Utils.interpolate()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Utils.interpolate()方法的具体详情如下：
包路径：org.crsh.util.Utils
类名称：Utils
方法名：interpolate

Utils.interpolate介绍

[英]Interpolate a string and replace the occurence from a context map, the syntax for a variable is ${} and it can accept a default value used when the variable cannot be resolved with the :- separator:

• {} + "foo" => "foo"
• {} + "${foo}" => ""
• {} + "\${foo}" => "${foo}"
• {foo:bar} + "${foo}" => "bar"
• {} + "${foo:-bar}" => "bar"
  [中]插入字符串并替换上下文映射中的出现，变量的语法为${}，当无法使用:-分隔符解析变量时，它可以接受使用的默认值：
  *[$2$]+“foo”=>“foo”
  *{}+“${foo}”=>
  *{}+“\${foo}”=>“${foo}”
  *{foo:bar}+“${foo}”=>“酒吧”
  *{}+“${foo:-bar}”=>“bar”

代码示例

代码示例来源：origin: crashub/crash

/**
 * The path property is resolved from the servlet context parameters. When the parameter does not exist,
 * the <code>defaultValue</code> argument is used instead, so it should not be null.
 * After the path is resolved, it is interpolated using the JVM system properties and the syntax
 * defined by the {@link org.crsh.util.Utils#interpolate(String, java.util.Map)} function.
 *
 * @param propertyName the property name to resolve
 * @param defaultValue the default property value
 * @return the path value
 */
private String resolvePathProperty(String propertyName, String defaultValue) {
 String path = context.getInitParameter(propertyName);
 if (path == null) {
  path = defaultValue;
 }
 return Utils.interpolate(path, System.getProperties());
}

代码示例来源：origin: crashub/crash

public void testInterpolate() {
  Map<String,String> context = Collections.singletonMap("foo", "bar");
  assertEquals("", Utils.interpolate("", context));
  assertEquals("$", Utils.interpolate("$", context));
  assertEquals("${foo}", Utils.interpolate("\\${foo}", context));
  assertEquals("${", Utils.interpolate("${", context));
  assertEquals("${a", Utils.interpolate("${a", context));
  assertEquals("bar", Utils.interpolate("${foo}", context));
  assertEquals("<bar>", Utils.interpolate("<${foo}>", context));
  assertEquals("<bar></bar>", Utils.interpolate("<${foo}></${foo}>", context));
  assertEquals("", Utils.interpolate("${bar}", context));
  assertEquals("juu", Utils.interpolate("${bar:-juu}", context));
  assertEquals("bar", Utils.interpolate("${foo:-juu}", context));
  assertEquals("", Utils.interpolate("${bar:-}", context));
  assertEquals("juu", Utils.interpolate("${:-juu}", context));
  assertEquals(":-", Utils.interpolate("${bar:-:-}", context));
 }
}

代码示例来源：origin: com.github.corda.crash/crash.shell

/**
 * The path property is resolved from the servlet context parameters. When the parameter does not exist,
 * the <code>defaultValue</code> argument is used instead, so it should not be null.
 * After the path is resolved, it is interpolated using the JVM system properties and the syntax
 * defined by the {@link org.crsh.util.Utils#interpolate(String, java.util.Map)} function.
 *
 * @param propertyName the property name to resolve
 * @param defaultValue the default property value
 * @return the path value
 */
private String resolvePathProperty(String propertyName, String defaultValue) {
 String path = context.getInitParameter(propertyName);
 if (path == null) {
  path = defaultValue;
 }
 return Utils.interpolate(path, System.getProperties());
}

代码示例来源：origin: org.crashub/crash.shell

/**
 * The path property is resolved from the servlet context parameters. When the parameter does not exist,
 * the <code>defaultValue</code> argument is used instead, so it should not be null.
 * After the path is resolved, it is interpolated using the JVM system properties and the syntax
 * defined by the {@link org.crsh.util.Utils#interpolate(String, java.util.Map)} function.
 *
 * @param propertyName the property name to resolve
 * @param defaultValue the default property value
 * @return the path value
 */
private String resolvePathProperty(String propertyName, String defaultValue) {
 String path = context.getInitParameter(propertyName);
 if (path == null) {
  path = defaultValue;
 }
 return Utils.interpolate(path, System.getProperties());
}