X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.document.server.io%2Fsrc%2Forg%2Fsimantics%2Fdocument%2Fserver%2Fio%2FJSONObjectUtils.java;fp=bundles%2Forg.simantics.document.server.io%2Fsrc%2Forg%2Fsimantics%2Fdocument%2Fserver%2Fio%2FJSONObjectUtils.java;h=8913645a9946c3f4884fd4e8c5ae9f028afaea1a;hp=c9e438af647aa258311422262443918949980607;hb=0ae2b770234dfc3cbb18bd38f324125cf0faca07;hpb=24e2b34260f219f0d1644ca7a138894980e25b14

diff --git a/bundles/org.simantics.document.server.io/src/org/simantics/document/server/io/JSONObjectUtils.java b/bundles/org.simantics.document.server.io/src/org/simantics/document/server/io/JSONObjectUtils.java
index c9e438af6..8913645a9 100644
--- a/bundles/org.simantics.document.server.io/src/org/simantics/document/server/io/JSONObjectUtils.java
+++ b/bundles/org.simantics.document.server.io/src/org/simantics/document/server/io/JSONObjectUtils.java
@@ -1,346 +1,346 @@
-/*******************************************************************************
- * Copyright (c) 2013, 2014 Association for Decentralized 
- * Information Management in Industry THTH ry.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the THTH Simantics 
- * Division Member Component License which accompanies this 
- * distribution, and is available at
- * http://www.simantics.org/legal/sdmcl-v10.html
- *
- * Contributors:
- *     Semantum Oy - initial API and implementation
- *******************************************************************************/
-package org.simantics.document.server.io;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
-
-public class JSONObjectUtils {
-    
-    public static String getText(IJSONObject object) {
-        return getValueOrDefault(object, "text", "");
-    }
-    
-    public static String getLink(IJSONObject object) {
-        return getValueOrDefault(object, "link", "");
-    }
-    
-    public static String getTarget(IJSONObject object) {
-        return getValueOrDefault(object, "target", "");
-    }
-    
-    public static String getHyperLinkTarget(IJSONObject object){
-    	return getValueOrDefault(object, "hyperlinkTarget", "");
-    }
-    
-    public static String getWidth(IJSONObject object) {
-        return getValueOrDefault(object, "width", "");
-    }
-    
-    public static String getHeight(IJSONObject object) {
-        return getValueOrDefault(object, "height", "");
-    }
-
-    public static String getParent(IJSONObject object) {
-    	return object.getValue("parent");
-    }
-    
-    public static boolean enabled(IJSONObject object) {
-        return getValueOrDefault(object, "enabled", true);
-    }
-    
-    public static boolean visible(IJSONObject object) {
-        return getValueOrDefault(object, "visible", true);
-    }
-    
-    public static boolean readOnly(IJSONObject object) {
-        return getValueOrDefault(object, "readOnly", false);
-    }
-    
-    public static boolean selected(IJSONObject object) {
-        return getValueOrDefault(object, "selected", false);
-    }
-
-    public static boolean followEditMode(IJSONObject object) {
-        return getValueOrDefault(object, "followEditMode", true);
-    }
-
-    public static String getType(IJSONObject object) {
-    	String result = (String)object.getValue("type");
-    	if(result == null) throw new IllegalStateException("No type for object " + object);
-        return result;
-    }
-
-    public static String getId(IJSONObject object) {
-    	String result = (String)object.getValue("id");
-    	if(result == null) throw new IllegalStateException("No type for object " + object);
-        return result;
-    }
-    
-    public static <T> T getValueOrDefault(IJSONObject object, String key, T defaultValue) {
-        try {
-        	T value = (T)object.getValue(key);
-        	if(value != null) return value;
-        } catch (ClassCastException e) {
-            e.printStackTrace();
-        }
-        return defaultValue;        
-    }
-    
-    public static String[] getStringArrayValueOrDefault(IJSONObject object, String key, String[] defaultValue) {
-        try {
-            Object o = object.getValue(key);
-            if (o instanceof List) {
-                @SuppressWarnings("unchecked")
-                List<String> s = (List<String>) o;
-                return s.toArray(new String[s.size()]);
-            } else if (o instanceof String[]) {
-                return (String[]) o;
-            }
-        } catch (ClassCastException e) {
-            e.printStackTrace();
-        }
-        return defaultValue;
-    }
-
-    public static float[] getFloatArrayValueOrDefault(IJSONObject object, String key, float[] defaultValue) {
-    	try {
-        	Object o = object.getValue(key);
-            if (o instanceof List) {
-                @SuppressWarnings("unchecked")
-                List<Float> list = (List<Float>) o;
-                float[] result = new float[list.size()];
-                int pos = 0;
-                for (float value : list) {
-                	result[pos++] = value;
-                }
-                return result;
-            } else if (o instanceof float[]) {
-                return (float[]) o;
-            }
-        } catch (ClassCastException e) {
-            e.printStackTrace();
-        }
-        return defaultValue;
-    }
-
-    public static int[] getIntArrayValueOrDefault(IJSONObject object, String key, int[] defaultValue) {
-        try {
-            Object o = object.getValue(key);
-            if (o instanceof List) {
-                @SuppressWarnings("unchecked")
-                List<Integer> list = (List<Integer>) o;
-                int[] result = new int[list.size()];
-                int pos = 0;
-                for (int i : list) {
-                	result[pos++] = i;
-                }
-                return result;
-            } else if (o instanceof int[]) {
-                return (int[]) o;
-            }
-        } catch (ClassCastException e) {
-            e.printStackTrace();
-        }
-        return defaultValue;
-    }
-
-    public static double[] getDoubleArrayValueOrDefault(IJSONObject object, String key, double[] defaultValue) {
-        try {
-        	Object o = object.getValue(key);
-            if (o instanceof List) {
-                @SuppressWarnings("unchecked")
-                List<Double> list = (List<Double>) o;
-                double[] result = new double[list.size()];
-                int pos = 0;
-                for (double value : list) {
-                	result[pos++] = value;
-                }
-                return result;
-            } else if (o instanceof double[]) {
-                return (double[]) o;
-            }
-        } catch (ClassCastException e) {
-            e.printStackTrace();
-        }
-        return defaultValue;
-    }
-    
-//    public static String[] getObjectArrayValue(IJSONObject object, String key) {
-//        try {
-//            String value = (String)object.getValue(key);
-//            if(value != null && value.startsWith("[") && value.endsWith("]")) {
-//            	
-//            	if(value.length() == 2) return new String[0];
-//            	
-//                value = value.substring(1, value.length() - 1);
-//                String[] split = value.split(",");
-//                
-//                for(int i = 0; i < split.length; i++) {
-//                	if(split[i].startsWith("\"") && split[i].endsWith("\""))
-//                			split[i] = split[i].substring(1, split[i].length() - 1);
-//                }
-//                
-//                return split;
-//            }
-//        } catch (ClassCastException e) {
-//            e.printStackTrace();
-//            return null;
-//        }
-//        
-//        return null;
-//    }
-
-    public static Collection<ICommand> getCommands(IJSONObject object) {
-        try {
-        	Collection<ICommand> result = object.getValue("commands");
-        	if(result != null) return result;
-        } catch (ClassCastException e) {
-            e.printStackTrace();
-        }
-        return Collections.emptyList();
-    }
-    
-    @SuppressWarnings("unchecked")
-    public static Collection<IChartItem> getChartItems(IJSONObject object) {
-        try {
-            Object values = object.getValue("values");
-            if (values == null)
-                return Collections.emptyList();
-            if (values instanceof String) {
-                String valuess = (String) values;
-                if (valuess.length() == 0)
-                    return Collections.emptyList();
-            }
-            return (List<IChartItem>) values;
-        } catch (ClassCastException e) {
-            e.printStackTrace();
-        }
-        
-        return Collections.emptyList();
-    }
-    
-//    public static TaskSeriesCollection getGanttTasks(IJSONObject object) {
-//        TaskSeriesCollection collection = new TaskSeriesCollection();
-//        try {
-//            
-//            //JSONArray seriesArray = object.getJSONArray("ganttSeries");
-//            @SuppressWarnings("unchecked")
-//            List<IJSONObject> seriesArray = (List<IJSONObject>) object.getValue("ganttSeries");
-//            for(IJSONObject seriesObject : seriesArray) {
-//                //IJSONObject seriesObject = seriesArray.getJSONObject(i);
-//                
-//                TaskSeries series = new TaskSeries(getStringValueOrNull(seriesObject, "name"));
-//                
-//                //JSONArray tasksArray = seriesObject.getJSONArray("tasks");
-//                @SuppressWarnings("unchecked")
-//                List<IJSONObject> tasksArray = (List<IJSONObject>) object.getValue("tasks");
-//                
-//                for(IJSONObject taskObject : tasksArray) {
-//                    //IJSONObject taskObject = tasksArray.getJSONObject(j);
-//                    String name = getStringValueOrNull(taskObject, "name");
-//                    Double start = getDoubleValueOrNull(taskObject, "start");
-//                    Double end = getDoubleValueOrNull(taskObject, "end");
-//                    
-////                    System.out.println("Task: " + name + ", start: " + start + ", end: " + end);
-//                    
-//                    if(start >= 0 && end >= 0 && start < end) {
-//                        Task task = new Task(name,  new Date(start.intValue()), new Date(end.intValue()));
-//                        
-//                        try {
-//                            //JSONArray subtasksArray = taskObject.getJSONArray("subtasks");
-//                            @SuppressWarnings("unchecked")
-//                            List<IJSONObject> subtasksArray = (List<IJSONObject>) object.getValue("subtasks");
-////                            System.out.println("\tFound " + subtasksArray.length() + " subtasks");
-//                            for(IJSONObject subtaskObject : subtasksArray) {
-//                                //IJSONObject subtaskObject = subtasksArray.getJSONObject(s);
-//                                String subtaskname = getStringValueOrNull(subtaskObject, "name");
-//                                Double subtaskstart = getDoubleValueOrNull(subtaskObject, "start");
-//                                Double subtaskend = getDoubleValueOrNull(subtaskObject, "end");
-//                                if(subtaskstart >= 0 && subtaskend >= 0 && subtaskstart < subtaskend) {
-//                                    Task subtask = new Task(subtaskname + " subtask " + (subtasksArray.indexOf(subtaskObject)),  new Date(subtaskstart.intValue()), new Date(subtaskend.intValue()));
-//                                    task.addSubtask(subtask);
-////                                    System.out.println("\tSubTask: " + subtaskname + ", start: " + subtaskstart + ", end: " + subtaskend);
-//                                }
-//                            }
-//                        } catch (ClassCastException e) {
-//                            // Some tasks may not have subtasks
-//                            e.printStackTrace();
-//                        }
-//                        
-//                        series.add(task);
-//                    }
-//                }
-//                
-//                collection.add(series);
-//            }
-//        } catch (ClassCastException e) {
-//            e.printStackTrace();
-//        }
-//        return collection;
-//    }
-    
-    @SuppressWarnings("unchecked")
-    public static Collection<IDataDefinition> getDataDefinitions(IJSONObject object) {
-        try {
-        	Collection<IDataDefinition> result = (List<IDataDefinition>) object.getValue("dataDefinitions");
-        	if(result != null) return result;
-        } catch (ClassCastException e) {
-            e.printStackTrace();
-        }
-        return Collections.emptyList();
-    }
-    
-    @SuppressWarnings("unchecked")
-    public static Collection<ITableCell> getTableCell(IJSONObject object) {
-        try {
-            Object tableCells = object.getValue("tableCells");
-            if (tableCells instanceof String) {
-                String tableCellsS = (String) tableCells;
-                if (tableCellsS.length() == 0)
-                    return Collections.emptyList();
-            }
-            if (tableCells != null) {
-            	return (List<ITableCell>) tableCells;
-            } else {
-            	return Collections.emptyList();
-            }
-        } catch (ClassCastException e) {
-            e.printStackTrace();
-        }
-        return Collections.emptyList();
-    }
-    
-    public static Collection<FileInfo> getFiles(IJSONObject object) {
-        try {
-            @SuppressWarnings("unchecked")
-            List<IJSONObject> fileArray = (List<IJSONObject>) object.getValue("files");
-            ArrayList<FileInfo> fileList = new ArrayList<FileInfo>();
-            for(IJSONObject f : fileArray) {
-                String name = getValueOrDefault(f, "name", "");
-                String content = getValueOrDefault(f, "content", "");
-                Long resourceId = getValueOrDefault(f, "resourceId", 0L);
-                Long creationTimeMillis = getValueOrDefault(f, "creationTimeMillis", 0L);
-                boolean canModify = getValueOrDefault(f, "canModify", false);
-                if(name != null && content != null) {
-                    fileList.add(new FileInfo(name, content, resourceId, creationTimeMillis, canModify));
-                }
-            }
-            return fileList;
-        } catch (ClassCastException e) {
-            e.printStackTrace();
-        }
-        
-        return Collections.emptyList();
-    }
-
-    public static List<IListItem> getListItems(IJSONObject object) {
-        Object items =  object.getValue("listItems");
-        if (items instanceof List<?>)
-            return (List<IListItem>) items;
-        else
-            return Collections.<IListItem>emptyList();
-    }
-}
+/*******************************************************************************
+ * Copyright (c) 2013, 2014 Association for Decentralized 
+ * Information Management in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the THTH Simantics 
+ * Division Member Component License which accompanies this 
+ * distribution, and is available at
+ * http://www.simantics.org/legal/sdmcl-v10.html
+ *
+ * Contributors:
+ *     Semantum Oy - initial API and implementation
+ *******************************************************************************/
+package org.simantics.document.server.io;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+public class JSONObjectUtils {
+    
+    public static String getText(IJSONObject object) {
+        return getValueOrDefault(object, "text", "");
+    }
+    
+    public static String getLink(IJSONObject object) {
+        return getValueOrDefault(object, "link", "");
+    }
+    
+    public static String getTarget(IJSONObject object) {
+        return getValueOrDefault(object, "target", "");
+    }
+    
+    public static String getHyperLinkTarget(IJSONObject object){
+    	return getValueOrDefault(object, "hyperlinkTarget", "");
+    }
+    
+    public static String getWidth(IJSONObject object) {
+        return getValueOrDefault(object, "width", "");
+    }
+    
+    public static String getHeight(IJSONObject object) {
+        return getValueOrDefault(object, "height", "");
+    }
+
+    public static String getParent(IJSONObject object) {
+    	return object.getValue("parent");
+    }
+    
+    public static boolean enabled(IJSONObject object) {
+        return getValueOrDefault(object, "enabled", true);
+    }
+    
+    public static boolean visible(IJSONObject object) {
+        return getValueOrDefault(object, "visible", true);
+    }
+    
+    public static boolean readOnly(IJSONObject object) {
+        return getValueOrDefault(object, "readOnly", false);
+    }
+    
+    public static boolean selected(IJSONObject object) {
+        return getValueOrDefault(object, "selected", false);
+    }
+
+    public static boolean followEditMode(IJSONObject object) {
+        return getValueOrDefault(object, "followEditMode", true);
+    }
+
+    public static String getType(IJSONObject object) {
+    	String result = (String)object.getValue("type");
+    	if(result == null) throw new IllegalStateException("No type for object " + object);
+        return result;
+    }
+
+    public static String getId(IJSONObject object) {
+    	String result = (String)object.getValue("id");
+    	if(result == null) throw new IllegalStateException("No type for object " + object);
+        return result;
+    }
+    
+    public static <T> T getValueOrDefault(IJSONObject object, String key, T defaultValue) {
+        try {
+        	T value = (T)object.getValue(key);
+        	if(value != null) return value;
+        } catch (ClassCastException e) {
+            e.printStackTrace();
+        }
+        return defaultValue;        
+    }
+    
+    public static String[] getStringArrayValueOrDefault(IJSONObject object, String key, String[] defaultValue) {
+        try {
+            Object o = object.getValue(key);
+            if (o instanceof List) {
+                @SuppressWarnings("unchecked")
+                List<String> s = (List<String>) o;
+                return s.toArray(new String[s.size()]);
+            } else if (o instanceof String[]) {
+                return (String[]) o;
+            }
+        } catch (ClassCastException e) {
+            e.printStackTrace();
+        }
+        return defaultValue;
+    }
+
+    public static float[] getFloatArrayValueOrDefault(IJSONObject object, String key, float[] defaultValue) {
+    	try {
+        	Object o = object.getValue(key);
+            if (o instanceof List) {
+                @SuppressWarnings("unchecked")
+                List<Float> list = (List<Float>) o;
+                float[] result = new float[list.size()];
+                int pos = 0;
+                for (float value : list) {
+                	result[pos++] = value;
+                }
+                return result;
+            } else if (o instanceof float[]) {
+                return (float[]) o;
+            }
+        } catch (ClassCastException e) {
+            e.printStackTrace();
+        }
+        return defaultValue;
+    }
+
+    public static int[] getIntArrayValueOrDefault(IJSONObject object, String key, int[] defaultValue) {
+        try {
+            Object o = object.getValue(key);
+            if (o instanceof List) {
+                @SuppressWarnings("unchecked")
+                List<Integer> list = (List<Integer>) o;
+                int[] result = new int[list.size()];
+                int pos = 0;
+                for (int i : list) {
+                	result[pos++] = i;
+                }
+                return result;
+            } else if (o instanceof int[]) {
+                return (int[]) o;
+            }
+        } catch (ClassCastException e) {
+            e.printStackTrace();
+        }
+        return defaultValue;
+    }
+
+    public static double[] getDoubleArrayValueOrDefault(IJSONObject object, String key, double[] defaultValue) {
+        try {
+        	Object o = object.getValue(key);
+            if (o instanceof List) {
+                @SuppressWarnings("unchecked")
+                List<Double> list = (List<Double>) o;
+                double[] result = new double[list.size()];
+                int pos = 0;
+                for (double value : list) {
+                	result[pos++] = value;
+                }
+                return result;
+            } else if (o instanceof double[]) {
+                return (double[]) o;
+            }
+        } catch (ClassCastException e) {
+            e.printStackTrace();
+        }
+        return defaultValue;
+    }
+    
+//    public static String[] getObjectArrayValue(IJSONObject object, String key) {
+//        try {
+//            String value = (String)object.getValue(key);
+//            if(value != null && value.startsWith("[") && value.endsWith("]")) {
+//            	
+//            	if(value.length() == 2) return new String[0];
+//            	
+//                value = value.substring(1, value.length() - 1);
+//                String[] split = value.split(",");
+//                
+//                for(int i = 0; i < split.length; i++) {
+//                	if(split[i].startsWith("\"") && split[i].endsWith("\""))
+//                			split[i] = split[i].substring(1, split[i].length() - 1);
+//                }
+//                
+//                return split;
+//            }
+//        } catch (ClassCastException e) {
+//            e.printStackTrace();
+//            return null;
+//        }
+//        
+//        return null;
+//    }
+
+    public static Collection<ICommand> getCommands(IJSONObject object) {
+        try {
+        	Collection<ICommand> result = object.getValue("commands");
+        	if(result != null) return result;
+        } catch (ClassCastException e) {
+            e.printStackTrace();
+        }
+        return Collections.emptyList();
+    }
+    
+    @SuppressWarnings("unchecked")
+    public static Collection<IChartItem> getChartItems(IJSONObject object) {
+        try {
+            Object values = object.getValue("values");
+            if (values == null)
+                return Collections.emptyList();
+            if (values instanceof String) {
+                String valuess = (String) values;
+                if (valuess.length() == 0)
+                    return Collections.emptyList();
+            }
+            return (List<IChartItem>) values;
+        } catch (ClassCastException e) {
+            e.printStackTrace();
+        }
+        
+        return Collections.emptyList();
+    }
+    
+//    public static TaskSeriesCollection getGanttTasks(IJSONObject object) {
+//        TaskSeriesCollection collection = new TaskSeriesCollection();
+//        try {
+//            
+//            //JSONArray seriesArray = object.getJSONArray("ganttSeries");
+//            @SuppressWarnings("unchecked")
+//            List<IJSONObject> seriesArray = (List<IJSONObject>) object.getValue("ganttSeries");
+//            for(IJSONObject seriesObject : seriesArray) {
+//                //IJSONObject seriesObject = seriesArray.getJSONObject(i);
+//                
+//                TaskSeries series = new TaskSeries(getStringValueOrNull(seriesObject, "name"));
+//                
+//                //JSONArray tasksArray = seriesObject.getJSONArray("tasks");
+//                @SuppressWarnings("unchecked")
+//                List<IJSONObject> tasksArray = (List<IJSONObject>) object.getValue("tasks");
+//                
+//                for(IJSONObject taskObject : tasksArray) {
+//                    //IJSONObject taskObject = tasksArray.getJSONObject(j);
+//                    String name = getStringValueOrNull(taskObject, "name");
+//                    Double start = getDoubleValueOrNull(taskObject, "start");
+//                    Double end = getDoubleValueOrNull(taskObject, "end");
+//                    
+////                    System.out.println("Task: " + name + ", start: " + start + ", end: " + end);
+//                    
+//                    if(start >= 0 && end >= 0 && start < end) {
+//                        Task task = new Task(name,  new Date(start.intValue()), new Date(end.intValue()));
+//                        
+//                        try {
+//                            //JSONArray subtasksArray = taskObject.getJSONArray("subtasks");
+//                            @SuppressWarnings("unchecked")
+//                            List<IJSONObject> subtasksArray = (List<IJSONObject>) object.getValue("subtasks");
+////                            System.out.println("\tFound " + subtasksArray.length() + " subtasks");
+//                            for(IJSONObject subtaskObject : subtasksArray) {
+//                                //IJSONObject subtaskObject = subtasksArray.getJSONObject(s);
+//                                String subtaskname = getStringValueOrNull(subtaskObject, "name");
+//                                Double subtaskstart = getDoubleValueOrNull(subtaskObject, "start");
+//                                Double subtaskend = getDoubleValueOrNull(subtaskObject, "end");
+//                                if(subtaskstart >= 0 && subtaskend >= 0 && subtaskstart < subtaskend) {
+//                                    Task subtask = new Task(subtaskname + " subtask " + (subtasksArray.indexOf(subtaskObject)),  new Date(subtaskstart.intValue()), new Date(subtaskend.intValue()));
+//                                    task.addSubtask(subtask);
+////                                    System.out.println("\tSubTask: " + subtaskname + ", start: " + subtaskstart + ", end: " + subtaskend);
+//                                }
+//                            }
+//                        } catch (ClassCastException e) {
+//                            // Some tasks may not have subtasks
+//                            e.printStackTrace();
+//                        }
+//                        
+//                        series.add(task);
+//                    }
+//                }
+//                
+//                collection.add(series);
+//            }
+//        } catch (ClassCastException e) {
+//            e.printStackTrace();
+//        }
+//        return collection;
+//    }
+    
+    @SuppressWarnings("unchecked")
+    public static Collection<IDataDefinition> getDataDefinitions(IJSONObject object) {
+        try {
+        	Collection<IDataDefinition> result = (List<IDataDefinition>) object.getValue("dataDefinitions");
+        	if(result != null) return result;
+        } catch (ClassCastException e) {
+            e.printStackTrace();
+        }
+        return Collections.emptyList();
+    }
+    
+    @SuppressWarnings("unchecked")
+    public static Collection<ITableCell> getTableCell(IJSONObject object) {
+        try {
+            Object tableCells = object.getValue("tableCells");
+            if (tableCells instanceof String) {
+                String tableCellsS = (String) tableCells;
+                if (tableCellsS.length() == 0)
+                    return Collections.emptyList();
+            }
+            if (tableCells != null) {
+            	return (List<ITableCell>) tableCells;
+            } else {
+            	return Collections.emptyList();
+            }
+        } catch (ClassCastException e) {
+            e.printStackTrace();
+        }
+        return Collections.emptyList();
+    }
+    
+    public static Collection<FileInfo> getFiles(IJSONObject object) {
+        try {
+            @SuppressWarnings("unchecked")
+            List<IJSONObject> fileArray = (List<IJSONObject>) object.getValue("files");
+            ArrayList<FileInfo> fileList = new ArrayList<FileInfo>();
+            for(IJSONObject f : fileArray) {
+                String name = getValueOrDefault(f, "name", "");
+                String content = getValueOrDefault(f, "content", "");
+                Long resourceId = getValueOrDefault(f, "resourceId", 0L);
+                Long creationTimeMillis = getValueOrDefault(f, "creationTimeMillis", 0L);
+                boolean canModify = getValueOrDefault(f, "canModify", false);
+                if(name != null && content != null) {
+                    fileList.add(new FileInfo(name, content, resourceId, creationTimeMillis, canModify));
+                }
+            }
+            return fileList;
+        } catch (ClassCastException e) {
+            e.printStackTrace();
+        }
+        
+        return Collections.emptyList();
+    }
+
+    public static List<IListItem> getListItems(IJSONObject object) {
+        Object items =  object.getValue("listItems");
+        if (items instanceof List<?>)
+            return (List<IListItem>) items;
+        else
+            return Collections.<IListItem>emptyList();
+    }
+}