Graph Fonts UbuntuFontLoader: Factor out FontLoaderImpl and have get(..) synchronized for static fontMap field access

1 files changed, 120 insertions, 0 deletions

diff --git a/src/jogl/classes/jogamp/graph/font/FontLoaderImpl.java b/src/jogl/classes/jogamp/graph/font/FontLoaderImpl.java
new file mode 100644
index 000000000..8fc1a9a1e
--- /dev/null
+++ b/src/jogl/classes/jogamp/graph/font/FontLoaderImpl.java
@@ -0,0 +1,120 @@
+/**
+ * Copyright 2011-2023 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.font;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URLConnection;
+
+import com.jogamp.common.net.Uri;
+import com.jogamp.common.os.Platform;
+import com.jogamp.common.util.IOUtil;
+import com.jogamp.common.util.IntObjectHashMap;
+import com.jogamp.common.util.JarUtil;
+import com.jogamp.common.util.SecurityUtil;
+import com.jogamp.common.util.cache.TempJarCache;
+import com.jogamp.graph.font.Font;
+import com.jogamp.graph.font.FontSet;
+import com.jogamp.graph.font.FontFactory;
+
+import java.security.PrivilegedAction;
+
+public abstract class FontLoaderImpl {
+
+    private static boolean attemptedJARLoading = false;
+    private static boolean useTempJARCache = false;
+
+    protected static boolean isOneSet(final int bits, final int bit) {
+        return 0 != ( bits & bit ) ;
+    }
+
+    protected synchronized Font readFont(final String fname, final Uri.Encoded jarName, final String absFontPath) throws IOException {
+        if( !attemptedJARLoading ) {
+            attemptedJARLoading = true;
+            Platform.initSingleton();
+            if( TempJarCache.isInitialized(false) ) {
+                try {
+                    final Uri uri = JarUtil.getRelativeOf(FontLoaderImpl.class, null, jarName);
+                    final Exception e0 = SecurityUtil.doPrivileged(new PrivilegedAction<Exception>() {
+                        @Override
+                        public Exception run() {
+                            try {
+                                TempJarCache.addResources(FontLoaderImpl.class, uri);
+                                useTempJARCache = true;
+                                return null;
+                            } catch (final Exception e) {
+                                return e;
+                            }
+                        } } );
+                    if( null != e0 ) {
+                        throw e0;
+                    }
+                } catch(final Exception e1) {
+                    System.err.println("Caught "+e1.getMessage());
+                    e1.printStackTrace();
+                }
+            }
+        }
+        try {
+            final Font f = readFontImpl(absFontPath+fname);
+            if( null != f ) {
+                return f;
+            }
+            throw new IOException(String.format("Problem loading font %s, stream %s%s", fname, absFontPath, fname));
+        } catch(final Exception e) {
+            throw new IOException(String.format("Problem loading font %s, stream %s%s", fname, absFontPath, fname), e);
+        }
+    }
+    private Font readFontImpl(final String fname) throws IOException {
+        final InputStream stream;
+        if( useTempJARCache ) {
+            final Exception[] privErr = { null };
+            stream = SecurityUtil.doPrivileged(new PrivilegedAction<InputStream>() {
+                @Override
+                public InputStream run() {
+                    try {
+                        final Uri uri = TempJarCache.getResourceUri(fname);
+                        return null != uri ? uri.toURL().openConnection().getInputStream() : null;
+                    } catch (final Exception e) {
+                        privErr[0] = e;
+                        return null;
+                    }
+                } } );
+            if( null != privErr[0] ) {
+                throw new IOException(privErr[0]);
+            }
+        } else {
+            final URLConnection urlConn = IOUtil.getResource(fname, getClass().getClassLoader(), null);
+            stream = null != urlConn ? urlConn.getInputStream() : null;
+        }
+        if(null != stream) {
+            return FontFactory.get ( stream, true ) ;
+        }
+        return null;
+    }
+}