/*
* Copyright 2016-2017 the original author or authors.
*
* 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 org.springframework.integration.scripting.dsl;
import java.util.HashMap;
import java.util.Map;
import org.springframework.core.io.Resource;
import org.springframework.integration.dsl.MessageProcessorSpec;
import org.springframework.integration.handler.MessageProcessor;
import org.springframework.integration.scripting.DefaultScriptVariableGenerator;
import org.springframework.integration.scripting.ScriptVariableGenerator;
import org.springframework.integration.support.MapBuilder;
import org.springframework.util.Assert;
/**
* The {@link MessageProcessorSpec} implementation for the {@link DslScriptExecutingMessageProcessor}.
*
* @author Artem Bilan
*
* @since 5.0
*/
public class ScriptSpec extends MessageProcessorSpec<ScriptSpec> {
private final DslScriptExecutingMessageProcessor processor;
private ScriptVariableGenerator variableGenerator;
private Map<String, Object> variables = new HashMap<String, Object>();
ScriptSpec(Resource scriptResource) {
Assert.notNull(scriptResource, "'scriptResource' must not be null");
this.processor = new DslScriptExecutingMessageProcessor(scriptResource);
}
ScriptSpec(String scriptLocation) {
Assert.hasText(scriptLocation, "'scriptLocation' must not be empty");
this.processor = new DslScriptExecutingMessageProcessor(scriptLocation);
}
/**
* The script lang (Groovy, ruby, python etc.).
* @param lang the script lang
* @return the current spec
* @see DslScriptExecutingMessageProcessor#setLang
*/
public ScriptSpec lang(String lang) {
Assert.hasText(lang, "'lang' must not be empty");
this.processor.setLang(lang);
return this;
}
/**
* The refreshCheckDelay in milliseconds for refreshable script resource.
* @param refreshCheckDelay the refresh check delay milliseconds
* @return the current spec
* @see org.springframework.integration.scripting.RefreshableResourceScriptSource
*/
public ScriptSpec refreshCheckDelay(long refreshCheckDelay) {
this.processor.setRefreshCheckDelay(refreshCheckDelay);
return this;
}
/**
* The {@link ScriptVariableGenerator} to use.
* @param variableGenerator the {@link ScriptVariableGenerator}
* @return the current spec
* @see org.springframework.integration.scripting.AbstractScriptExecutingMessageProcessor
*/
public ScriptSpec variableGenerator(ScriptVariableGenerator variableGenerator) {
Assert.notNull(variableGenerator, "'variableGenerator' must not be null");
Assert.state(this.variables.isEmpty(), "'variableGenerator' and 'variables' are mutually exclusive");
this.variableGenerator = variableGenerator;
return this;
}
/**
* The script variables to use.
* @param variables the script variables {@link MapBuilder}
* @return the current spec
* @see DefaultScriptVariableGenerator
*/
public ScriptSpec variables(MapBuilder<?, String, Object> variables) {
return variables(variables.get());
}
/**
* The script variables to use
* @param variables the script variables {@link Map}
* @return the current spec
* @see DefaultScriptVariableGenerator
*/
public ScriptSpec variables(Map<String, Object> variables) {
Assert.notEmpty(variables, "'variables' must not be empty");
Assert.state(this.variableGenerator == null, "'variableGenerator' and 'variables' are mutually exclusive");
this.variables.putAll(variables);
return this;
}
/**
* The script variable to use.
* @param name the name of variable
* @param value the value of variable
* @return the current spec
* @see DefaultScriptVariableGenerator
*/
public ScriptSpec variable(String name, Object value) {
Assert.hasText(name, "'name' must not be empty");
Assert.state(this.variableGenerator == null, "'variableGenerator' and 'variables' are mutually exclusive");
this.variables.put(name, value);
return this;
}
@Override
protected MessageProcessor<?> doGet() {
if (this.variableGenerator == null) {
this.variableGenerator = new DefaultScriptVariableGenerator(this.variables);
}
this.processor.setVariableGenerator(this.variableGenerator);
return this.processor;
}
}