Added an interface for saving xmlobject objects to zip

Author: s_zhangziang

src/main/java/org/apache/xmlbeans/FilterXmlObject.java

@@ -28,6 +28,7 @@
 import java.util.Calendar;
 import java.util.Date;
 import java.util.List;
+import java.util.zip.ZipOutputStream;
 
 /**
  * A FilterXmlObject delegates to some other XmlObject, which it can use as
@@ -199,6 +200,10 @@ public void save(OutputStream os, XmlOptions options) throws IOException {
         underlyingXmlObject().save(os, options);
     }
 
+    public void save(ZipOutputStream zos, XmlOptions options) throws IOException {
+        underlyingXmlObject().save(zos, options);
+    }
+
     public void save(Writer w, XmlOptions options) throws IOException {
         underlyingXmlObject().save(w, options);
     }

src/main/java/org/apache/xmlbeans/XmlTokenSource.java

@@ -22,6 +22,7 @@
 
 import javax.xml.stream.XMLStreamReader;
 import java.io.*;
+import java.util.zip.ZipOutputStream;
 
 /**
  * Represents a holder of XML that can return an {@link XmlCursor}
@@ -170,6 +171,14 @@ public interface XmlTokenSource {
      */
     void save(OutputStream os) throws IOException;
 
+    /**
+     * Writes the XML represented by this source to the given zip output stream.
+     * This method will save the XML declaration, including encoding information,
+     * with the XML.
+     */
+    void save(ZipOutputStream os) throws IOException;
+
+
     /**
      * Writes the XML represented by this source to the given output.
      * Note that this method does not save the XML declaration, including the encoding information.
@@ -336,6 +345,13 @@ public interface XmlTokenSource {
      */
     void save(OutputStream os, XmlOptions options) throws IOException;
 
+    /**
+     * Writes the XML represented by this source to the given zip output stream.
+     * This method will save the XML declaration, including encoding information,
+     * with the XML.
+     */
+    void save(ZipOutputStream os, XmlOptions options) throws IOException;
+
     /**
      * Writes the XML represented by this source to the given output.
      * Note that this method does not save the XML declaration, including the encoding information.

src/main/java/org/apache/xmlbeans/impl/store/Cursor.java

@@ -37,6 +37,7 @@
 import java.util.Collection;
 import java.util.Map;
 import java.util.function.Supplier;
+import java.util.zip.ZipOutputStream;
 
 public final class Cursor implements XmlCursor, ChangeListener {
     static final int ROOT = Cur.ROOT;
@@ -510,6 +511,10 @@ public void _save(OutputStream os) throws IOException {
         _save(os, null);
     }
 
+    public void _save(ZipOutputStream zos) throws IOException {
+        _save(zos, null);
+    }
+
     public void _save(Writer w) throws IOException {
         _save(w, null);
     }
@@ -579,6 +584,26 @@ public void _save(OutputStream os, XmlOptions options) throws IOException {
         }
     }
 
+    public void _save(ZipOutputStream zos, XmlOptions options) throws IOException {
+        if (zos == null) {
+            throw new IllegalArgumentException("Null ZipOutputStream specified");
+        }
+
+        try (InputStream is = _newInputStream(options)) {
+            byte[] bytes = new byte[8192];
+
+            for (; ; ) {
+                int n = is.read(bytes);
+
+                if (n < 0) {
+                    break;
+                }
+
+                zos.write(bytes, 0, n);
+            }
+        }
+    }
+
     public void _save(Writer w, XmlOptions options) throws IOException {
         if (w == null) {
             throw new IllegalArgumentException("Null Writer specified");
@@ -1975,6 +2000,10 @@ public void save(OutputStream os) throws IOException {
         syncWrapIOEx(() -> _save(os));
     }
 
+    public void save(ZipOutputStream zos) throws IOException {
+        syncWrapIOEx(() -> _save(zos));
+    }
+
     public void save(Writer w) throws IOException {
         syncWrapIOEx(() -> _save(w));
     }
@@ -2007,6 +2036,10 @@ public void save(OutputStream os, XmlOptions options) throws IOException {
         syncWrapIOEx(() -> _save(os, options));
     }
 
+    public void save(ZipOutputStream zos, XmlOptions options) throws IOException {
+        syncWrapIOEx(() -> _save(zos, options));
+    }
+
     public void save(Writer w, XmlOptions options) throws IOException {
         syncWrapIOEx(() -> _save(w, options));
     }

src/main/java/org/apache/xmlbeans/impl/values/XmlObjectBase.java

@@ -35,6 +35,7 @@
 import java.util.*;
 import java.util.function.Function;
 import java.util.function.IntFunction;
+import java.util.zip.ZipOutputStream;
 
 public abstract class XmlObjectBase implements TypeStoreUser, Serializable, XmlObject, SimpleValue {
     public static final short MAJOR_VERSION_NUMBER = (short) 1; // for serialization
@@ -191,6 +192,12 @@ public void save(OutputStream os, XmlOptions options) throws IOException {
         }
     }
 
+    public void save(ZipOutputStream zos, XmlOptions options) throws IOException {
+        try (XmlCursor cur = newCursorForce()) {
+            cur.save(zos, makeInnerOptions(options));
+        }
+    }
+
     public void save(Writer w, XmlOptions options) throws IOException {
         try (XmlCursor cur = newCursorForce()) {
             cur.save(w, makeInnerOptions(options));
@@ -209,6 +216,10 @@ public void save(OutputStream os) throws IOException {
         save(os, null);
     }
 
+    public void save(ZipOutputStream zos) throws IOException {
+        save(zos, null);
+    }
+
     public void save(Writer w) throws IOException {
         save(w, null);
     }