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Posted to dev@commons.apache.org by ra...@apache.org on 2006/01/07 18:16:26 UTC
svn commit: r366851 - in /jakarta/commons/sandbox/scxml/trunk:
scxml-checks.xml src/main/java/org/apache/commons/scxml/SCXMLDigester.java
src/main/java/org/apache/commons/scxml/SCXMLSerializer.java
Author: rahul
Date: Sat Jan 7 09:16:15 2006
New Revision: 366851
URL: http://svn.apache.org/viewcvs?rev=366851&view=rev
Log:
Move serialization bits into a utility class. SCXML serialization is primarily useful in testing, debugging and visual verification, but serves no purpose as far as the executor is concerned. Also commented out the check insisting utility classes be final.
Added:
jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLSerializer.java (with props)
Modified:
jakarta/commons/sandbox/scxml/trunk/scxml-checks.xml
jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLDigester.java
Modified: jakarta/commons/sandbox/scxml/trunk/scxml-checks.xml
URL: http://svn.apache.org/viewcvs/jakarta/commons/sandbox/scxml/trunk/scxml-checks.xml?rev=366851&r1=366850&r2=366851&view=diff
==============================================================================
--- jakarta/commons/sandbox/scxml/trunk/scxml-checks.xml (original)
+++ jakarta/commons/sandbox/scxml/trunk/scxml-checks.xml Sat Jan 7 09:16:15 2006
@@ -1,7 +1,7 @@
<?xml version="1.0"?>
<!--
/*
- * Copyright 2001-2004 The Apache Software Foundation.
+ * Copyright 2005-2006 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -185,7 +185,7 @@
Turn off the design for extension check
based on discussion on commons-dev AT jakarta.apache.org -->
<!--module name="DesignForExtension"/-->
- <module name="FinalClass"/>
+ <!--module name="FinalClass"/-->
<module name="HideUtilityClassConstructor"/>
<module name="InterfaceIsType"/>
<module name="VisibilityModifier"/>
Modified: jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLDigester.java
URL: http://svn.apache.org/viewcvs/jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLDigester.java?rev=366851&r1=366850&r2=366851&view=diff
==============================================================================
--- jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLDigester.java (original)
+++ jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLDigester.java Sat Jan 7 09:16:15 2006
@@ -1,6 +1,6 @@
/*
*
- * Copyright 2005 The Apache Software Foundation.
+ * Copyright 2005-2006 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -23,7 +23,6 @@
import java.util.Iterator;
import java.util.List;
import java.util.Map;
-import java.util.Set;
import javax.xml.parsers.ParserConfigurationException;
@@ -74,7 +73,6 @@
* <li>Digest a SCXML file into the Commons SCXML Java object model.</li>
* <li>Obtain a SCXML Digester for further customization of the default
* ruleset.</li>
- * <li>Serialize an SCXML object (primarily for debugging).</li>
* </ol>
*/
public final class SCXMLDigester {
@@ -311,27 +309,6 @@
}
}
- /**
- * Serialize this SCXML object (primarily for debugging).
- *
- * @param scxml
- * The SCXML to be serialized
- * @return String The serialized SCXML
- */
- public static String serializeSCXML(final SCXML scxml) {
- StringBuffer b = new StringBuffer("<scxml xmlns=\"").append(
- scxml.getXmlns()).append("\" version=\"").append(
- scxml.getVersion()).append("\" initialstate=\"").append(
- scxml.getInitialstate()).append("\">\n");
- Map s = scxml.getStates();
- Iterator i = s.keySet().iterator();
- while (i.hasNext()) {
- serializeState(b, (State) s.get(i.next()), INDENT);
- }
- b.append("</scxml>\n");
- return b.toString();
- }
-
//---------------------- PRIVATE CONSTANTS ----------------------//
//// Patterns to get the digestion going
/** Root <scxml> element. */
@@ -413,9 +390,6 @@
private static final String XP_ELS = "/else";
//// Other constants
- /** The indent to be used while serializing an SCXML object. */
- private static final String INDENT = " ";
-
/**
* Logger for SCXMLDigester.
*/
@@ -935,325 +909,6 @@
MessageFormat msgFormat = new MessageFormat(errType);
String errMsg = msgFormat.format(msgArgs);
log.error(errMsg);
- }
-
- /*
- * Private SCXML object serialization utility functions.
- */
- /**
- * Serialize this State object.
- *
- * @param b The buffer to append the serialization to
- * @param s The State to serialize
- * @param indent The indent for this XML element
- */
- private static void serializeState(final StringBuffer b,
- final State s, final String indent) {
- b.append(indent).append("<state");
- serializeTransitionTargetAttributes(b, s);
- boolean f = s.getIsFinal();
- if (f) {
- b.append(" final=\"true\"");
- }
- b.append(">\n");
- Initial ini = s.getInitial();
- if (ini != null) {
- serializeInitial(b, ini, indent + INDENT);
- }
- List h = s.getHistory();
- if (h != null) {
- serializeHistory(b, h, indent + INDENT);
- }
- serializeOnEntry(b, s, indent + INDENT);
- Map t = s.getTransitions();
- Iterator i = t.keySet().iterator();
- while (i.hasNext()) {
- List et = (List) t.get(i.next());
- for (int len = 0; len < et.size(); len++) {
- serializeTransition(b, (Transition) et.get(len), indent
- + INDENT);
- }
- }
- Parallel p = s.getParallel();
- if (p != null) {
- serializeParallel(b, p, indent + INDENT);
- } else {
- Map c = s.getChildren();
- Iterator j = c.keySet().iterator();
- while (j.hasNext()) {
- State cs = (State) c.get(j.next());
- serializeState(b, cs, indent + INDENT);
- }
- }
- serializeOnExit(b, s, indent + INDENT);
- b.append(indent).append("</state>\n");
- }
-
- /**
- * Serialize this Parallel object.
- *
- * @param b The buffer to append the serialization to
- * @param p The Parallel to serialize
- * @param indent The indent for this XML element
- */
- private static void serializeParallel(final StringBuffer b,
- final Parallel p, final String indent) {
- b.append(indent).append("<parallel");
- serializeTransitionTargetAttributes(b, p);
- b.append(">\n");
- serializeOnEntry(b, p, indent + INDENT);
- Set s = p.getStates();
- Iterator i = s.iterator();
- while (i.hasNext()) {
- serializeState(b, (State) i.next(), indent + INDENT);
- }
- serializeOnExit(b, p, indent + INDENT);
- b.append(indent).append("</parallel>\n");
- }
-
- /**
- * Serialize this Initial object.
- *
- * @param b The buffer to append the serialization to
- * @param i The Initial to serialize
- * @param indent The indent for this XML element
- */
- private static void serializeInitial(final StringBuffer b, final Initial i,
- final String indent) {
- b.append(indent).append("<initial");
- serializeTransitionTargetAttributes(b, i);
- b.append(">\n");
- serializeTransition(b, i.getTransition(), indent + INDENT);
- b.append(indent).append("</initial>\n");
- }
-
- /**
- * Serialize the History.
- *
- * @param b The buffer to append the serialization to
- * @param l The List of History objects to serialize
- * @param indent The indent for this XML element
- */
- private static void serializeHistory(final StringBuffer b, final List l,
- final String indent) {
- if (l.size() > 0) {
- for (int i = 0; i < l.size(); i++) {
- History h = (History) l.get(i);
- b.append(indent).append("<history");
- serializeTransitionTargetAttributes(b, h);
- if (h.isDeep()) {
- b.append(" type=\"deep\"");
- } else {
- b.append(" type=\"shallow\"");
- }
- b.append(">\n");
- serializeTransition(b, h.getTransition(), indent + INDENT);
- b.append(indent).append("</history>\n");
- }
- }
- }
-
- /**
- * Serialize properties of TransitionTarget which are element attributes.
- *
- * @param b The buffer to append the serialization to
- * @param t The TransitionTarget
- */
- private static void serializeTransitionTargetAttributes(
- final StringBuffer b, final TransitionTarget t) {
- String id = t.getId();
- if (id != null) {
- b.append(" id=\"" + id + "\"");
- }
- TransitionTarget pt = t.getParent();
- if (pt != null) {
- String pid = pt.getId();
- if (pid != null) {
- b.append(" parentid=\"").append(pid).append("\"");
- }
- }
- }
-
- /**
- * Serialize this Transition object.
- *
- * @param b The buffer to append the serialization to
- * @param t The Transition to serialize
- * @param indent The indent for this XML element
- */
- private static void serializeTransition(final StringBuffer b,
- final Transition t, final String indent) {
- b.append(indent).append("<transition event=\"").append(t.getEvent())
- .append("\" cond=\"").append(t.getCond()).append("\">\n");
- boolean exit = serializeActions(b, t.getActions(), indent + INDENT);
- if (!exit) {
- serializeTarget(b, t, indent + INDENT);
- }
- b.append(indent).append("</transition>\n");
- }
-
- /**
- * Serialize this Transition's Target.
- *
- *
- * @param b The buffer to append the serialization to
- * @param t The Transition whose Target needs to be serialized
- * @param indent The indent for this XML element
- */
- private static void serializeTarget(final StringBuffer b,
- final Transition t, final String indent) {
- b.append(indent).append("<target");
- String n = t.getNext();
- if (n != null) {
- b.append(" next=\"" + n + "\">\n");
- } else {
- b.append(">\n");
- if (t.getTarget() != null) {
- // The inline transition target can only be a state
- serializeState(b, (State) t.getTarget(), indent + INDENT);
- }
- }
- b.append(indent).append("</target>\n");
- }
-
- /**
- * Serialize this OnEntry object.
- *
- * @param b The buffer to append the serialization to
- * @param t The TransitionTarget whose OnEntry is to be serialized
- * @param indent The indent for this XML element
- */
- private static void serializeOnEntry(final StringBuffer b,
- final TransitionTarget t, final String indent) {
- OnEntry e = t.getOnEntry();
- if (e != null && e.getActions().size() > 0) {
- b.append(indent).append("<onentry>\n");
- serializeActions(b, e.getActions(), indent + INDENT);
- b.append(indent).append("</onentry>\n");
- }
- }
-
- /**
- * Serialize this OnExit object.
- *
- * @param b The buffer to append the serialization to
- * @param t The TransitionTarget whose OnExit is to be serialized
- * @param indent The indent for this XML element
- */
- private static void serializeOnExit(final StringBuffer b,
- final TransitionTarget t, final String indent) {
- OnExit x = t.getOnExit();
- if (x != null && x.getActions().size() > 0) {
- b.append(indent).append("<onexit>\n");
- serializeActions(b, x.getActions(), indent + INDENT);
- b.append(indent).append("</onexit>\n");
- }
- }
-
- /**
- * Serialize this List of actions.
- *
- * @param b The buffer to append the serialization to
- * @param l The List of actions to serialize
- * @param indent The indent for this XML element
- * @return boolean true if the list of actions contains an <exit/>
- */
- private static boolean serializeActions(final StringBuffer b, final List l,
- final String indent) {
- if (l == null) {
- return false;
- }
- boolean exit = false;
- Iterator i = l.iterator();
- while (i.hasNext()) {
- Action a = (Action) i.next();
- if (a instanceof Var) {
- Var v = (Var) a;
- b.append(indent).append("<var name=\"").append(v.getName())
- .append("\" expr=\"").append(v.getExpr()).append(
- "\"/>\n");
- } else if (a instanceof Assign) {
- Assign asn = (Assign) a;
- b.append(indent).append("<assign name=\"")
- .append(asn.getName()).append("\" expr=\"")
- .append(asn.getExpr()).append("\"/>\n");
- } else if (a instanceof Send) {
- serializeSend(b, (Send) a, indent);
- } else if (a instanceof Cancel) {
- Cancel c = (Cancel) a;
- b.append(indent).append("<cancel sendid=\"")
- .append(c.getSendid()).append("\"/>\n");
- } else if (a instanceof Log) {
- Log lg = (Log) a;
- b.append(indent).append("<log expr=\"").append(lg.getExpr())
- .append("\"/>\n");
- } else if (a instanceof Exit) {
- Exit e = (Exit) a;
- b.append(indent).append("<exit");
- String expr = e.getExpr();
- String nl = e.getNamelist();
- if (expr != null) {
- b.append(" expr=\"" + expr + "\"");
- }
- if (nl != null) {
- b.append(" namelist=\"" + nl + "\"");
- }
- b.append("/>\n");
- exit = true;
- } else if (a instanceof If) {
- If iff = (If) a;
- serializeIf(b, iff, indent);
- } else if (a instanceof Else) {
- b.append(indent).append("<else/>\n");
- } else if (a instanceof ElseIf) {
- ElseIf eif = (ElseIf) a;
- b.append(indent).append("<elseif cond=\"")
- .append(eif.getCond()).append("\" />\n");
- }
- }
- return exit;
- }
-
- /**
- * Serialize this Send object.
- *
- * @param b The buffer to append the serialization to
- * @param send The Send object to serialize
- * @param indent The indent for this XML element
- */
- private static void serializeSend(final StringBuffer b,
- final Send send, final String indent) {
- b.append(indent).append("<send sendid=\"")
- .append(send.getSendid()).append("\" target=\"")
- .append(send.getTarget()).append("\" targetType=\"")
- .append(send.getTargettype()).append("\" namelist=\"")
- .append(send.getNamelist()).append("\" delay=\"")
- .append(send.getDelay()).append("\" events=\"")
- .append(send.getEvent()).append("\" hints=\"")
- .append(send.getHints()).append("\">\n");
- /* TODO - Serialize body content
- try {
- b.append(send.getBodyContent());
- } catch (IOException ioe) {
- log.error("Failed to serialize external nodes for <send>", ioe);
- }
- */
- b.append(indent).append("</send>\n");
- }
-
- /**
- * Serialize this If object.
- *
- * @param b The buffer to append the serialization to
- * @param iff The If object to serialize
- * @param indent The indent for this XML element
- */
- private static void serializeIf(final StringBuffer b,
- final If iff, final String indent) {
- b.append(indent).append("<if cond=\"").append(iff.getCond()).append(
- "\">\n");
- serializeActions(b, iff.getActions(), indent + INDENT);
- b.append(indent).append("</if>\n");
}
/**
Added: jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLSerializer.java
URL: http://svn.apache.org/viewcvs/jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLSerializer.java?rev=366851&view=auto
==============================================================================
--- jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLSerializer.java (added)
+++ jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLSerializer.java Sat Jan 7 09:16:15 2006
@@ -0,0 +1,404 @@
+/*
+ *
+ * Copyright 2006 The Apache Software Foundation.
+ *
+ * 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.apache.commons.scxml;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.commons.scxml.model.Action;
+import org.apache.commons.scxml.model.Assign;
+import org.apache.commons.scxml.model.Cancel;
+import org.apache.commons.scxml.model.Else;
+import org.apache.commons.scxml.model.ElseIf;
+import org.apache.commons.scxml.model.Exit;
+import org.apache.commons.scxml.model.History;
+import org.apache.commons.scxml.model.If;
+import org.apache.commons.scxml.model.Initial;
+import org.apache.commons.scxml.model.Log;
+import org.apache.commons.scxml.model.OnEntry;
+import org.apache.commons.scxml.model.OnExit;
+import org.apache.commons.scxml.model.Parallel;
+import org.apache.commons.scxml.model.SCXML;
+import org.apache.commons.scxml.model.Send;
+import org.apache.commons.scxml.model.State;
+import org.apache.commons.scxml.model.Transition;
+import org.apache.commons.scxml.model.TransitionTarget;
+import org.apache.commons.scxml.model.Var;
+
+/**
+ * Utility class for serializing the Commons SCXML Java object
+ * model. Class uses the visitor pattern to trace through the
+ * object heirarchy. Used primarily for testing, debugging and
+ * visual verification.
+ *
+ */
+public class SCXMLSerializer {
+
+ /** The indent to be used while serializing an SCXML object. */
+ private static final String INDENT = " ";
+
+ /**
+ * Serialize this SCXML object (primarily for debugging).
+ *
+ * @param scxml
+ * The SCXML to be serialized
+ * @return String The serialized SCXML
+ */
+ public static String serialize(final SCXML scxml) {
+ StringBuffer b = new StringBuffer("<scxml xmlns=\"").append(
+ scxml.getXmlns()).append("\" version=\"").append(
+ scxml.getVersion()).append("\" initialstate=\"").append(
+ scxml.getInitialstate()).append("\">\n");
+ Map s = scxml.getStates();
+ Iterator i = s.keySet().iterator();
+ while (i.hasNext()) {
+ serializeState(b, (State) s.get(i.next()), INDENT);
+ }
+ b.append("</scxml>\n");
+ return b.toString();
+ }
+
+ /**
+ * Serialize this State object.
+ *
+ * @param b The buffer to append the serialization to
+ * @param s The State to serialize
+ * @param indent The indent for this XML element
+ */
+ public static void serializeState(final StringBuffer b,
+ final State s, final String indent) {
+ b.append(indent).append("<state");
+ serializeTransitionTargetAttributes(b, s);
+ boolean f = s.getIsFinal();
+ if (f) {
+ b.append(" final=\"true\"");
+ }
+ b.append(">\n");
+ Initial ini = s.getInitial();
+ if (ini != null) {
+ serializeInitial(b, ini, indent + INDENT);
+ }
+ List h = s.getHistory();
+ if (h != null) {
+ serializeHistory(b, h, indent + INDENT);
+ }
+ serializeOnEntry(b, s, indent + INDENT);
+ Map t = s.getTransitions();
+ Iterator i = t.keySet().iterator();
+ while (i.hasNext()) {
+ List et = (List) t.get(i.next());
+ for (int len = 0; len < et.size(); len++) {
+ serializeTransition(b, (Transition) et.get(len), indent
+ + INDENT);
+ }
+ }
+ Parallel p = s.getParallel();
+ if (p != null) {
+ serializeParallel(b, p, indent + INDENT);
+ } else {
+ Map c = s.getChildren();
+ Iterator j = c.keySet().iterator();
+ while (j.hasNext()) {
+ State cs = (State) c.get(j.next());
+ serializeState(b, cs, indent + INDENT);
+ }
+ }
+ serializeOnExit(b, s, indent + INDENT);
+ b.append(indent).append("</state>\n");
+ }
+
+ /**
+ * Serialize this Parallel object.
+ *
+ * @param b The buffer to append the serialization to
+ * @param p The Parallel to serialize
+ * @param indent The indent for this XML element
+ */
+ public static void serializeParallel(final StringBuffer b,
+ final Parallel p, final String indent) {
+ b.append(indent).append("<parallel");
+ serializeTransitionTargetAttributes(b, p);
+ b.append(">\n");
+ serializeOnEntry(b, p, indent + INDENT);
+ Set s = p.getStates();
+ Iterator i = s.iterator();
+ while (i.hasNext()) {
+ serializeState(b, (State) i.next(), indent + INDENT);
+ }
+ serializeOnExit(b, p, indent + INDENT);
+ b.append(indent).append("</parallel>\n");
+ }
+
+ /**
+ * Serialize this Initial object.
+ *
+ * @param b The buffer to append the serialization to
+ * @param i The Initial to serialize
+ * @param indent The indent for this XML element
+ */
+ public static void serializeInitial(final StringBuffer b, final Initial i,
+ final String indent) {
+ b.append(indent).append("<initial");
+ serializeTransitionTargetAttributes(b, i);
+ b.append(">\n");
+ serializeTransition(b, i.getTransition(), indent + INDENT);
+ b.append(indent).append("</initial>\n");
+ }
+
+ /**
+ * Serialize the History.
+ *
+ * @param b The buffer to append the serialization to
+ * @param l The List of History objects to serialize
+ * @param indent The indent for this XML element
+ */
+ public static void serializeHistory(final StringBuffer b, final List l,
+ final String indent) {
+ if (l.size() > 0) {
+ for (int i = 0; i < l.size(); i++) {
+ History h = (History) l.get(i);
+ b.append(indent).append("<history");
+ serializeTransitionTargetAttributes(b, h);
+ if (h.isDeep()) {
+ b.append(" type=\"deep\"");
+ } else {
+ b.append(" type=\"shallow\"");
+ }
+ b.append(">\n");
+ serializeTransition(b, h.getTransition(), indent + INDENT);
+ b.append(indent).append("</history>\n");
+ }
+ }
+ }
+
+ /**
+ * Serialize this Transition object.
+ *
+ * @param b The buffer to append the serialization to
+ * @param t The Transition to serialize
+ * @param indent The indent for this XML element
+ */
+ public static void serializeTransition(final StringBuffer b,
+ final Transition t, final String indent) {
+ b.append(indent).append("<transition event=\"").append(t.getEvent())
+ .append("\" cond=\"").append(t.getCond()).append("\">\n");
+ boolean exit = serializeActions(b, t.getActions(), indent + INDENT);
+ if (!exit) {
+ serializeTarget(b, t, indent + INDENT);
+ }
+ b.append(indent).append("</transition>\n");
+ }
+
+ /**
+ * Serialize this Transition's Target.
+ *
+ *
+ * @param b The buffer to append the serialization to
+ * @param t The Transition whose Target needs to be serialized
+ * @param indent The indent for this XML element
+ */
+ public static void serializeTarget(final StringBuffer b,
+ final Transition t, final String indent) {
+ b.append(indent).append("<target");
+ String n = t.getNext();
+ if (n != null) {
+ b.append(" next=\"" + n + "\">\n");
+ } else {
+ b.append(">\n");
+ if (t.getTarget() != null) {
+ // The inline transition target can only be a state
+ serializeState(b, (State) t.getTarget(), indent + INDENT);
+ }
+ }
+ b.append(indent).append("</target>\n");
+ }
+
+ /**
+ * Serialize this OnEntry object.
+ *
+ * @param b The buffer to append the serialization to
+ * @param t The TransitionTarget whose OnEntry is to be serialized
+ * @param indent The indent for this XML element
+ */
+ public static void serializeOnEntry(final StringBuffer b,
+ final TransitionTarget t, final String indent) {
+ OnEntry e = t.getOnEntry();
+ if (e != null && e.getActions().size() > 0) {
+ b.append(indent).append("<onentry>\n");
+ serializeActions(b, e.getActions(), indent + INDENT);
+ b.append(indent).append("</onentry>\n");
+ }
+ }
+
+ /**
+ * Serialize this OnExit object.
+ *
+ * @param b The buffer to append the serialization to
+ * @param t The TransitionTarget whose OnExit is to be serialized
+ * @param indent The indent for this XML element
+ */
+ public static void serializeOnExit(final StringBuffer b,
+ final TransitionTarget t, final String indent) {
+ OnExit x = t.getOnExit();
+ if (x != null && x.getActions().size() > 0) {
+ b.append(indent).append("<onexit>\n");
+ serializeActions(b, x.getActions(), indent + INDENT);
+ b.append(indent).append("</onexit>\n");
+ }
+ }
+
+ /**
+ * Serialize this List of actions.
+ *
+ * @param b The buffer to append the serialization to
+ * @param l The List of actions to serialize
+ * @param indent The indent for this XML element
+ * @return boolean true if the list of actions contains an <exit/>
+ */
+ public static boolean serializeActions(final StringBuffer b, final List l,
+ final String indent) {
+ if (l == null) {
+ return false;
+ }
+ boolean exit = false;
+ Iterator i = l.iterator();
+ while (i.hasNext()) {
+ Action a = (Action) i.next();
+ if (a instanceof Var) {
+ Var v = (Var) a;
+ b.append(indent).append("<var name=\"").append(v.getName())
+ .append("\" expr=\"").append(v.getExpr()).append(
+ "\"/>\n");
+ } else if (a instanceof Assign) {
+ Assign asn = (Assign) a;
+ b.append(indent).append("<assign name=\"")
+ .append(asn.getName()).append("\" expr=\"")
+ .append(asn.getExpr()).append("\"/>\n");
+ } else if (a instanceof Send) {
+ serializeSend(b, (Send) a, indent);
+ } else if (a instanceof Cancel) {
+ Cancel c = (Cancel) a;
+ b.append(indent).append("<cancel sendid=\"")
+ .append(c.getSendid()).append("\"/>\n");
+ } else if (a instanceof Log) {
+ Log lg = (Log) a;
+ b.append(indent).append("<log expr=\"").append(lg.getExpr())
+ .append("\"/>\n");
+ } else if (a instanceof Exit) {
+ Exit e = (Exit) a;
+ b.append(indent).append("<exit");
+ String expr = e.getExpr();
+ String nl = e.getNamelist();
+ if (expr != null) {
+ b.append(" expr=\"" + expr + "\"");
+ }
+ if (nl != null) {
+ b.append(" namelist=\"" + nl + "\"");
+ }
+ b.append("/>\n");
+ exit = true;
+ } else if (a instanceof If) {
+ If iff = (If) a;
+ serializeIf(b, iff, indent);
+ } else if (a instanceof Else) {
+ b.append(indent).append("<else/>\n");
+ } else if (a instanceof ElseIf) {
+ ElseIf eif = (ElseIf) a;
+ b.append(indent).append("<elseif cond=\"")
+ .append(eif.getCond()).append("\" />\n");
+ }
+ }
+ return exit;
+ }
+
+ /**
+ * Serialize this Send object.
+ *
+ * @param b The buffer to append the serialization to
+ * @param send The Send object to serialize
+ * @param indent The indent for this XML element
+ */
+ public static void serializeSend(final StringBuffer b,
+ final Send send, final String indent) {
+ b.append(indent).append("<send sendid=\"")
+ .append(send.getSendid()).append("\" target=\"")
+ .append(send.getTarget()).append("\" targetType=\"")
+ .append(send.getTargettype()).append("\" namelist=\"")
+ .append(send.getNamelist()).append("\" delay=\"")
+ .append(send.getDelay()).append("\" events=\"")
+ .append(send.getEvent()).append("\" hints=\"")
+ .append(send.getHints()).append("\">\n");
+ /* TODO - Serialize body content
+ try {
+ b.append(send.getBodyContent());
+ } catch (IOException ioe) {
+ log.error("Failed to serialize external nodes for <send>", ioe);
+ }
+ */
+ b.append(indent).append("</send>\n");
+ }
+
+ /**
+ * Serialize this If object.
+ *
+ * @param b The buffer to append the serialization to
+ * @param iff The If object to serialize
+ * @param indent The indent for this XML element
+ */
+ public static void serializeIf(final StringBuffer b,
+ final If iff, final String indent) {
+ b.append(indent).append("<if cond=\"").append(iff.getCond()).append(
+ "\">\n");
+ serializeActions(b, iff.getActions(), indent + INDENT);
+ b.append(indent).append("</if>\n");
+ }
+
+ /*
+ * Private methods.
+ */
+ /**
+ * Discourage instantiation since this is a utility class.
+ */
+ private SCXMLSerializer() {
+ super();
+ }
+
+ /**
+ * Serialize properties of TransitionTarget which are element attributes.
+ *
+ * @param b The buffer to append the serialization to
+ * @param t The TransitionTarget
+ */
+ private static void serializeTransitionTargetAttributes(
+ final StringBuffer b, final TransitionTarget t) {
+ String id = t.getId();
+ if (id != null) {
+ b.append(" id=\"" + id + "\"");
+ }
+ TransitionTarget pt = t.getParent();
+ if (pt != null) {
+ String pid = pt.getId();
+ if (pid != null) {
+ b.append(" parentid=\"").append(pid).append("\"");
+ }
+ }
+ }
+
+}
Propchange: jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLSerializer.java
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Propchange: jakarta/commons/sandbox/scxml/trunk/src/main/java/org/apache/commons/scxml/SCXMLSerializer.java
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