使用参数从Groovy调用方法 [英] invokeMethod from Groovy with parameters
问题描述
我想从下面的类中调用groovy方法
.io.BufferedReader;import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import com.ABC.csm.context.AppCtxProperties;
import com.ABC.csm.context.AppContext;
public class LicenseInfo
{
private StringBuffer licenseInformation;
public LicenseInfo(){
licenseInformation = new StringBuffer();
}
public StringBuffer getLicenseInformation(){
return licenseInformation;
$ b $ public void fetchLicenseInformation(HashMap< String,String> params,Map env)
{
ArrayList< String> licenseList = fetchLicenses(params);
。
。
。
}
private ArrayList< String> fetchLicenses(HashMap< String,String> params,Map env)
{
ArrayList< String> licenseList = new ArrayList< String>();
。
。
。
返回licenseList;
$ b $ p
所以这是我正在尝试做什么
//获取用户参数
HashMap< String,String> params = IntermediateResults.get(userparams)
//获取环境变量
Map env = AppContext.get(AppCtxProperties.environmentVariables)
Object [] arguments = new Object [2]
arguments.putAt(userparams,params)
arguments.putAt(env,env)
GroovyShell shell = new GroovyShell()
脚本infa9LicenseScript = shell.parse(plugins.infa9.LicenseInfo)
infa9LicenseScript.invokeMethod(fetchLicenseInformation,arguments)
字符串lic =(String)infa9LicenseScript.invokeMethod(getLicenseInformation, null)
我将参数传递给 fetchLicenseInformation
正确?我需要传递 HashMap< String,String> ,Map
请帮我使用参数调用groovy方法
错误:线程main中的异常groovy.lang .MissingPropertyException:No such property:userparams for class:[Ljava.lang.Object;
更新
public List< String> fetchLicenses(Map< String,String> params,Map env){
// ['a','b','c']
ArrayList< String> licenseList = new ArrayList< String> ;
字符串infacmdListLicensesCommand = null;
$ b $ if(System.getProperty(os.name)。contains(Win))
{infacmdListLicensesCommand = env.get(INFA_HOME)
+/
+ params.get(dn)+-un+ params.get(un)+-pd
+ params。 (pd)+-sdn+ params.get(sdn)+-hp
+ params.get(dh)+:+ params.get(dp );}
else
{infacmdListLicensesCommand = env.get(INFA_HOME)
+/isp/bin/infacmd.sh ListLicenses -dn//这是第71行,其中抛出异常
+ params.get(dn)+-un+ params.get(un)+-pd
+ params.get(pd)+ -sdn+ params.get(sdn)+-hp
+ params.get(dh)+:+ params.get(dp);}
try {
Process proc = Runtime.getRuntime()。exec(infacmdListLicensesCommand);
InputStream stdin = proc.getInputStream();
InputStreamReader isr = new InputStreamReader(stdin);
BufferedReader br = new BufferedReader(isr);
String line = null; ((line = br.readLine())!= null){
System.out.println(line);
while
licenseList.add(line);
}
int exitVal = proc.waitFor();
System.out.println(Process exit value is:+ exitVal);
catch(IOException io){
io.printStackTrace();
} catch(InterruptedException ie){
ie.printStackTrace();
} / *结束catch * /
返回licenseList;
}
异常
线程main中的异常groovy.lang.MissingMethodException:方法没有签名:java.lang.String.positive()适用于参数类型:()values:[]
可能的解决方案:notify() ,org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:55)
,org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unaryPlus(ScriptBytecodeAdapter。)中的tokenize(),size()
。 java:764)
infa9.LicenseInfo.fetchLicenses(Infa9LicensesUtil.groovy:71)
正确...我在文件夹 > Test.groovy ./ test / $ c $中创建了这个groovy脚本
LicenseInfo.groovy
b
$ public class LicenseInfo {
StringBuffer licenseInformation
public LicenseInfo(){
licenseInformation = new StringBuffer()
}
public void fetchL许可信息(Map< String,String> params,Map env){
List< String> licenseList = fetchLicenses(params,env)
printlnList is $ licenseList
}
public List< String> fetchLicenses(Map< String,String> params,Map env){
['a','b','c']
}
}
$ c $在当前文件夹 ./
里面创建了这个groovy脚本
:
//创建一些参数...
def params = [name:'tim',value:'text']
//伪造一个env Map
def env = [something:'whatever']
//从脚本加载类
def liClass = new GroovyClassLoader()。parseClass(new File('test / LicenseInfo.groovy'))
//运行方法
liClass.newInstance()。fetchLicenseInformation(params,env)
执行命令
groovy Test.groovy
打印出来:
列表是[a,b,c]
更新后编辑
正值
你得到的错误是由于th通过Groovy解析器的工作方式......当连接字符串时, +
不能放在下一行的开头, +
必须在前一行中结尾(因为groovy中行的结尾是分号是可选的,所以解析器无法知道你正在添加到前一行)
这将起作用:
if(System.getProperty(os.name)。包含(Win)){
infacmdListLicensesCommand = env.get(INFA_HOME)+/isp/bin/infacmd.bat ListLicenses -dn+
params.get(dn)+ -un+ params.get(un)+-pd+
params.get(pd)+-sdn+ params.get(sdn)+-hp +
params.get(dh)+:+ params.get(dp)
}
else {
infacmdListLicensesCommand = env.get(INFA_HOME )+/isp/bin/infacmd.sh ListLicenses -dn+
params.get(dn)+-un+ params.get( un)+-pd+
params.get(pd)+-sdn+ params.get(sdn)+-hp+
params.get( dh)+:+ params.get(dp)
}
这将是一个更为Groovy做同样事情的方式:
boolean isWindows = System。 getProperty(os.name)。contains(Win)
//作为用于格式化目的的3个项目列表
infacmdListLicensesCommand = [
$ env.INFA_HOME / isp /bin/infacmd.${isWindows?'bat':'sh'} ListLicenses
-dn $ params.dn -un $ params.un -pd $ params.pd -sdn $ params.sdn
-hp $ params.dh:$ params.dp] .join('')//然后将它们连接在一起
println infacmdListLicensesCommand //打印出来看它是一样的如前
I want to invoke groovy method from the given below class
package infa9
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import com.ABC.csm.context.AppCtxProperties;
import com.ABC.csm.context.AppContext;
public class LicenseInfo
{
private StringBuffer licenseInformation;
public LicenseInfo() {
licenseInformation = new StringBuffer();
}
public StringBuffer getLicenseInformation(){
return licenseInformation;
}
public void fetchLicenseInformation(HashMap<String,String> params,Map env)
{
ArrayList<String> licenseList = fetchLicenses(params);
.
.
.
}
private ArrayList<String> fetchLicenses(HashMap<String,String> params,Map env)
{
ArrayList<String>licenseList = new ArrayList<String>();
.
.
.
return licenseList;
}
}
So this is what I am trying to do
//getting user parameters
HashMap<String,String> params = IntermediateResults.get("userparams")
//getting environment variables
Map env=AppContext.get(AppCtxProperties.environmentVariables)
Object[] arguments=new Object[2]
arguments.putAt("userparams", params)
arguments.putAt("env", env)
GroovyShell shell = new GroovyShell()
Script infa9LicenseScript = shell.parse("plugins.infa9.LicenseInfo")
infa9LicenseScript.invokeMethod(fetchLicenseInformation, arguments)
String lic=(String)infa9LicenseScript.invokeMethod(getLicenseInformation,null)
Am I passing the parameters to fetchLicenseInformation
correctly?? I need to pass HashMap<String,String> ,Map
Please help me invoke a groovy method with parameters
Error: Exception in thread "main" groovy.lang.MissingPropertyException: No such property: userparams for class: [Ljava.lang.Object;
Update
public List<String> fetchLicenses( Map<String,String> params, Map env ) {
//[ 'a', 'b', 'c' ]
ArrayList<String>licenseList = new ArrayList<String>();
String infacmdListLicensesCommand = null;
if (System.getProperty("os.name").contains("Win"))
{ infacmdListLicensesCommand = env.get("INFA_HOME")
+ "/isp/bin/infacmd.bat ListLicenses -dn "
+ params.get("dn") + " -un " + params.get("un") + " -pd "
+ params.get("pd") + " -sdn " + params.get("sdn") + " -hp "
+ params.get("dh") + ":" + params.get("dp");}
else
{ infacmdListLicensesCommand = env.get("INFA_HOME")
+ "/isp/bin/infacmd.sh ListLicenses -dn " //this is line no 71, where exception is thrown
+ params.get("dn") + " -un " + params.get("un") + " -pd "
+ params.get("pd") + " -sdn " + params.get("sdn") + " -hp "
+ params.get("dh") + ":" + params.get("dp");}
try {
Process proc = Runtime.getRuntime().exec(infacmdListLicensesCommand);
InputStream stdin = proc.getInputStream();
InputStreamReader isr = new InputStreamReader(stdin);
BufferedReader br = new BufferedReader(isr);
String line = null;
while ((line = br.readLine()) != null) {
System.out.println(line);
licenseList.add(line);
}
int exitVal = proc.waitFor();
System.out.println("Process exit value is: " + exitVal);
}catch (IOException io) {
io.printStackTrace();
}catch (InterruptedException ie) {
ie.printStackTrace();
} /* end catch */
return licenseList;
}
Exception
Exception in thread "main" groovy.lang.MissingMethodException: No signature of method: java.lang.String.positive() is applicable for argument types: () values: []
Possible solutions: notify(), tokenize(), size()
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:55)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unaryPlus(ScriptBytecodeAdapter.java:764)
at infa9.LicenseInfo.fetchLicenses(Infa9LicensesUtil.groovy:71)
Right...I created this groovy script LicenseInfo.groovy
inside a folder ./test/
:
package test
public class LicenseInfo {
StringBuffer licenseInformation
public LicenseInfo() {
licenseInformation = new StringBuffer()
}
public void fetchLicenseInformation( Map<String,String> params, Map env ) {
List<String> licenseList = fetchLicenses( params, env )
println "List is $licenseList"
}
public List<String> fetchLicenses( Map<String,String> params, Map env ) {
[ 'a', 'b', 'c' ]
}
}
inside the current folder ./
, I created this groovy script Test.groovy
:
// Make some params...
def params = [ name:'tim', value:'text' ]
// Fake an env Map
def env = [ something:'whatever' ]
// Load the class from the script
def liClass = new GroovyClassLoader().parseClass( new File( 'test/LicenseInfo.groovy' ) )
// Run the method
liClass.newInstance().fetchLicenseInformation( params, env )
When I execute the command
groovy Test.groovy
it prints out:
List is [a, b, c]
Edit after update
The positive
errors you are getting are due to the way the Groovy parser works... You cannot put the +
on the start of the next line when joining Strings, the +
has to be trailing on the previous line (as semi-colons are optional for the end of lines in groovy, there is no way for the parser to know you are adding on to the previous line)
This will work:
if (System.getProperty("os.name").contains("Win")) {
infacmdListLicensesCommand = env.get("INFA_HOME") + "/isp/bin/infacmd.bat ListLicenses -dn " +
params.get("dn") + " -un " + params.get("un") + " -pd " +
params.get("pd") + " -sdn " + params.get("sdn") + " -hp " +
params.get("dh") + ":" + params.get("dp")
}
else {
infacmdListLicensesCommand = env.get("INFA_HOME") + "/isp/bin/infacmd.sh ListLicenses -dn " +
params.get("dn") + " -un " + params.get("un") + " -pd " +
params.get("pd") + " -sdn " + params.get("sdn") + " -hp " +
params.get("dh") + ":" + params.get("dp")
}
And this would be a more Groovy way of doing the same thing:
boolean isWindows = System.getProperty("os.name").contains("Win")
// Do it as a list of 3 items for formatting purposes
infacmdListLicensesCommand = [
"$env.INFA_HOME/isp/bin/infacmd.${isWindows?'bat':'sh'} ListLicenses"
"-dn $params.dn -un $params.un -pd $params.pd -sdn $params.sdn"
"-hp $params.dh:$params.dp" ].join( ' ' ) // then join them back together
println infacmdListLicensesCommand // print it out to see it's the same as before
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