Merge pull request #1 from csetera/master

Add support to pedal loader for file-system based scripts

README.md

@@ -26,7 +26,7 @@ Minimum dependencies that you need to provide in your application:
 
 #### Vanilla setup
 
-Create an instance of `Loader` (concrete class `com.eclecticlogic.pedal.loader.impl.LoaderImpl`) and give it a reference to an `EntityManager`. 
+For classpath-based loading, create an instance of `Loader` (concrete class `com.eclecticlogic.pedal.loader.impl.LoaderImpl`) and give it a reference to an `EntityManager`.  For filesystem-based loading, create an instance of `com.eclecticlogic.pedal.loader.impl.FileSystemLoaderImpl` instead of `com.eclecticlogic.pedal.loader.impl.LoaderImpl`.
 
 #### Spring 
 
@@ -62,7 +62,7 @@ The Loader interface provides a number of methods to specify your script and inp
 ```
     loader.withScriptDirectory("myScripts").load("basicdata.groovy");
 ```
-This specifies that the loader should read the script basicdata.groovy contained within a classpath directory called myScripts. The file could just as well have been specified with the directory as `myScripts\basicdata.groovy`. However, the withScriptDirectory allows you to setup a well known directory and have all other calls simply reference the script by name without worry about relative paths.
+This specifies that the loader should read the script basicdata.groovy contained within a classpath or filesystem directory called myScripts. The file could just as well have been specified with the directory as `myScripts\basicdata.groovy`. However, the withScriptDirectory allows you to setup a well known directory and have all other calls simply reference the script by name without worry about relative paths.
 
 ### Script Format
 

src/main/java/com/eclecticlogic/pedal/loader/impl/AbstractLoaderImpl.java

@@ -0,0 +1,85 @@
+package com.eclecticlogic.pedal.loader.impl;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+
+import com.eclecticlogic.pedal.loader.Loader;
+import com.eclecticlogic.pedal.loader.LoaderExecutor;
+import com.eclecticlogic.pedal.loader.Script;
+
+import groovy.lang.Closure;
+
+/**
+ * 
+ * Abstract implementation for all of the {@link Loader} implementations
+ * 
+ * @author kabram.
+ * @author Craig Setera
+ *
+ */
+public abstract class AbstractLoaderImpl implements Loader {
+
+    public AbstractLoaderImpl() {
+        super();
+    }
+
+    public AbstractLoaderImpl(EntityManager entityManager) {
+        super();
+        this.entityManager = entityManager;
+    }
+
+	protected String scriptDirectory;
+	protected Map<String, Closure<Object>> customMethods = new HashMap<>();
+
+	@PersistenceContext
+	protected EntityManager entityManager;
+
+	public void setEntityManager(EntityManager entityManager) {
+	    this.entityManager = entityManager;
+	}
+
+	@Override
+	public Loader withScriptDirectory(String directory) {
+	    scriptDirectory = directory;
+	    return this;
+	}
+
+	@Override
+	public Loader withCustomMethod(String methodName, Closure<Object> closure) {
+	    customMethods.put(methodName, closure);
+	    return this;
+	}
+
+	@Override
+	public LoaderExecutor withInputs(Map<String, Object> inputs) {
+		AbstractScriptExecutor executor = createScriptExecutor();
+	    executor.setInputs(inputs);
+	    return executor;
+	}
+
+	@Override
+	public Map<String, Object> load(String loadScript, String... additionalScripts) {
+	    return createScriptExecutor().load(loadScript, additionalScripts);
+	}
+
+	@Override
+	public Map<String, Object> load(Script script, Script... additionalScripts) {
+	    return createScriptExecutor().load(script, additionalScripts);
+	}
+
+	@Override
+	public Map<String, Object> load(Collection<String> loadScripts) {
+	    return createScriptExecutor().load(loadScripts);
+	}
+
+	@Override
+	public Map<String, Object> loadNamespaced(Collection<Script> loadScripts) {
+	    return createScriptExecutor().loadNamespaced(loadScripts);
+	}
+
+	protected abstract AbstractScriptExecutor createScriptExecutor();
+}