调整项目模块，jodconverter-core重命名为office-plugin。jdocnverter-web重命名为server

office-plugin/src/main/java/org/artofsolving/jodconverter/OfficeDocumentUtils.java

@@ -0,0 +1,47 @@
+//
+// JODConverter - Java OpenDocument Converter
+// Copyright 2004-2012 Mirko Nasato and contributors
+//
+// JODConverter is Open Source software, you can redistribute it and/or
+// modify it under either (at your option) of the following licenses
+//
+// 1. The GNU Lesser General Public License v3 (or later)
+//    -> http://www.gnu.org/licenses/lgpl-3.0.txt
+// 2. The Apache License, Version 2.0
+//    -> http://www.apache.org/licenses/LICENSE-2.0.txt
+//
+package org.artofsolving.jodconverter;
+
+import static org.artofsolving.jodconverter.office.OfficeUtils.*;
+
+import org.artofsolving.jodconverter.document.DocumentFamily;
+import org.artofsolving.jodconverter.office.OfficeException;
+
+
+import com.sun.star.lang.XComponent;
+import com.sun.star.lang.XServiceInfo;
+
+class OfficeDocumentUtils {
+
+    private OfficeDocumentUtils() {
+        throw new AssertionError("utility class must not be instantiated");
+    }
+
+    public static DocumentFamily getDocumentFamily(XComponent document) throws OfficeException {
+        XServiceInfo serviceInfo = cast(XServiceInfo.class, document);
+        if (serviceInfo.supportsService("com.sun.star.text.GenericTextDocument")) {
+            // NOTE: a GenericTextDocument is either a TextDocument, a WebDocument, or a GlobalDocument
+            // but this further distinction doesn't seem to matter for conversions
+            return DocumentFamily.TEXT;
+        } else if (serviceInfo.supportsService("com.sun.star.sheet.SpreadsheetDocument")) {
+            return DocumentFamily.SPREADSHEET;
+        } else if (serviceInfo.supportsService("com.sun.star.presentation.PresentationDocument")) {
+            return DocumentFamily.PRESENTATION;
+        } else if (serviceInfo.supportsService("com.sun.star.drawing.DrawingDocument")) {
+            return DocumentFamily.DRAWING;
+        } else {
+            throw new OfficeException("document of unknown family: " + serviceInfo.getImplementationName());
+        }
+    }
+
+}