AT&T 2.0.19 Code drop, stage 1

[aaf/authz.git] / misc / xgen / src / main / java / org / onap / aaf / misc / xgen / CacheGen.java

diff --git a/misc/xgen/src/main/java/org/onap/aaf/misc/xgen/CacheGen.java b/misc/xgen/src/main/java/org/onap/aaf/misc/xgen/CacheGen.java
new file mode 100644 (file)
index 0000000..aa3d1fe
--- /dev/null
+++ b/misc/xgen/src/main/java/org/onap/aaf/misc/xgen/CacheGen.java
@@ -0,0 +1,131 @@
+/**
+ * ============LICENSE_START====================================================
+ * org.onap.aaf
+ * ===========================================================================
+ * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
+ * ===========================================================================
+ * 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.
+ * ============LICENSE_END====================================================
+ *
+ */
+
+package org.onap.aaf.misc.xgen;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.util.ArrayList;
+
+import org.onap.aaf.misc.env.APIException;
+import org.onap.aaf.misc.env.Env;
+import org.onap.aaf.misc.env.Trans;
+import org.onap.aaf.misc.xgen.html.State;
+import org.onap.aaf.misc.xgen.html.Thematic;
+
+
+public abstract class CacheGen<G extends XGen<G>> {
+       public static final int NO_FLAGS = 0x0;
+       public final static int PRETTY  = 0x1;
+       public final static int XML             = 0x2;
+       public final static int HTML4   = 0x4;
+       public final static int HTML5   = 0x8;
+
+       
+       private ArrayList<Section<G>> sections = new ArrayList<Section<G>>();
+       private int flags;
+       private final Thematic thematic;
+
+       public CacheGen(int flags, Code<G> code) throws APIException, IOException {
+               this.flags = flags;
+               final XGenBuff<G> buff = new XGenBuff<G>(flags,this);
+               // Run to gather Strings and Code Class Segments
+               buff.run(new Cache<G>() {
+                               @Override
+                               public void dynamic(G hgen, Code<G> code) {
+                                       sections.add(buff.newSection());
+                                       sections.add(new Dynamic(hgen.getIndent(),code));
+                               }
+                       },code);
+               sections.add(buff.newSection());
+       
+               // If Code implements thematic, set for later
+               thematic = code instanceof Thematic?(Thematic)code:null;
+
+       }
+       
+       public abstract G create(int htmlStyle, Writer w);
+
+       public void replay(State<Env> state, Trans trans, OutputStream os, String theme) throws IOException, APIException {
+               replay(state, trans, new OutputStreamWriter(os), theme);
+       }
+       
+       public void replay(State<Env> state, Trans trans,Writer w, String theme) throws IOException, APIException {
+               if(thematic!=null) {
+                       theme = thematic.themeResolve(theme);
+               }
+               /* Theme
+               trans.setTheme(theme);
+               int htmlStyle = state.htmlVer(theme);
+               */
+               
+               XGenBuff<G> buff = new XGenBuff<G>(flags,this);
+               
+               // forward
+               int indent = 0;
+               Section<G> s;
+               int i=0;
+               @SuppressWarnings("unchecked")
+               Section<G>[] reverse = new Section[sections.size()];
+               for(Section<G> section : sections) {
+                       s = section.use(state, trans, buff); // note, doesn't change cached, only dynamic, which is created for thread
+                       int tempIndent = s.getIndent();
+                       s.setIndent(indent);
+                       s.forward(w);
+                       s.setIndent(tempIndent);
+                       indent = tempIndent;
+                       reverse[i++]=s;
+               }
+
+               for(--i;i>=0;--i) {
+                       reverse[i].back(w);
+               }
+               w.flush();
+       }
+       
+       private class Dynamic extends Section<G> {
+               private Code<G> code;
+               
+               public Dynamic(int indent, Code<G> code) {
+                       this.code = code;
+                       this.indent = indent;
+               }
+
+               @SuppressWarnings("unchecked")
+               public Section<G> use(State<Env> state, Trans trans, XGenBuff<G> buff) throws APIException, IOException {
+                       // Clone Dynamic to make Thread Safe
+                       Dynamic d = new Dynamic(indent,code);
+                       buff.setIndent(indent);
+                       if(code instanceof DynamicCode) {
+                               buff.run(state,trans,Cache.Null.singleton(), (DynamicCode<G,?,? extends Trans>)code);
+                       } else {
+                               buff.run((Cache<G>)Cache.Null.singleton(), code);
+                       }
+                       Section<G> s = buff.newSection();
+                       d.indent = s.indent;
+                       d.forward = s.forward;
+                       d.backward = s.backward;
+                       return d;
+               }
+       }
+}