Initial commit

wise-webapp/src/main/java/com/wisemapping/util/VelocityEngineUtils.java

@@ -0,0 +1,38 @@
+package com.wisemapping.util;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.velocity.VelocityContext;
+import org.apache.velocity.app.VelocityEngine;
+import org.apache.velocity.exception.VelocityException;
+
+import java.io.StringWriter;
+import java.io.Writer;
+import java.util.Map;
+
+public class VelocityEngineUtils {
+    private static final Log logger = LogFactory.getLog(VelocityEngineUtils.class);
+
+    public static void mergeTemplate(
+            VelocityEngine velocityEngine, String templateLocation,
+            Map<String, Object> model, Writer writer
+    ) throws VelocityException {
+        try {
+            VelocityContext velocityContext = new VelocityContext(model);
+            velocityEngine.mergeTemplate(templateLocation, "UTF-8", velocityContext, writer);
+        } catch (RuntimeException ex) {
+            throw ex;
+        } catch (Exception ex) {
+            logger.error("Why does VelocityEngine throw a generic checked exception, after all?", ex);
+            throw new VelocityException(ex.toString());
+        }
+    }
+
+    public static String mergeTemplateIntoString(
+            VelocityEngine velocityEngine, String templateLocation, Map<String, Object> model
+    ) throws VelocityException {
+        StringWriter result = new StringWriter();
+        mergeTemplate(velocityEngine, templateLocation, model, result);
+        return result.toString();
+    }
+}

wise-webapp/src/main/java/com/wisemapping/util/VelocityEngineWrapper.java

@@ -0,0 +1,24 @@
+package com.wisemapping.util;
+
+import org.apache.commons.collections.ExtendedProperties;
+import org.apache.velocity.app.VelocityEngine;
+import org.jetbrains.annotations.NotNull;
+
+public class VelocityEngineWrapper {
+    private VelocityEngine velocityEngine;
+
+    public VelocityEngineWrapper() {
+        ExtendedProperties extendedProperties = new ExtendedProperties();
+        extendedProperties.setProperty("resource.loader", "class");
+        extendedProperties.setProperty("class.resource.loader.class",
+                "org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader");
+
+        this.velocityEngine = new VelocityEngine();
+        velocityEngine.setExtendedProperties(extendedProperties);
+    }
+
+    @NotNull
+    public VelocityEngine getVelocityEngine() {
+        return velocityEngine;
+    }
+}