diff options
Diffstat (limited to 'platform/util/src/com/intellij/util/ReflectionUtil.java')
-rw-r--r-- | platform/util/src/com/intellij/util/ReflectionUtil.java | 52 |
1 files changed, 47 insertions, 5 deletions
diff --git a/platform/util/src/com/intellij/util/ReflectionUtil.java b/platform/util/src/com/intellij/util/ReflectionUtil.java index d5f6a58dc951..8e2204415988 100644 --- a/platform/util/src/com/intellij/util/ReflectionUtil.java +++ b/platform/util/src/com/intellij/util/ReflectionUtil.java @@ -19,17 +19,15 @@ package com.intellij.util; import com.intellij.Patches; import com.intellij.openapi.diagnostic.Logger; import com.intellij.openapi.util.Condition; -import com.intellij.util.containers.ContainerUtil; +import com.intellij.openapi.util.DifferenceFilter; +import com.intellij.util.containers.*; import org.jetbrains.annotations.NonNls; import org.jetbrains.annotations.NotNull; import org.jetbrains.annotations.Nullable; import sun.reflect.ConstructorAccessor; import java.lang.reflect.*; -import java.util.ArrayList; -import java.util.Arrays; -import java.util.Collection; -import java.util.List; +import java.util.*; public class ReflectionUtil { private static final Logger LOG = Logger.getInstance("#com.intellij.util.ReflectionUtil"); @@ -479,6 +477,50 @@ public class ReflectionUtil { return callerClass; } + public static void copyFields(@NotNull Field[] fields, @NotNull Object from, @NotNull Object to) { + copyFields(fields, from, to, null); + } + + public static boolean copyFields(@NotNull Field[] fields, @NotNull Object from, @NotNull Object to, @Nullable DifferenceFilter diffFilter) { + Set<Field> sourceFields = new com.intellij.util.containers.HashSet<Field>(Arrays.asList(from.getClass().getFields())); + boolean valuesChanged = false; + for (Field field : fields) { + if (sourceFields.contains(field)) { + if (isPublic(field) && !isFinal(field)) { + try { + if (diffFilter == null || diffFilter.isAccept(field)) { + copyFieldValue(from, to, field); + valuesChanged = true; + } + } + catch (Exception e) { + throw new RuntimeException(e); + } + } + } + } + return valuesChanged; + } + + public static void copyFieldValue(@NotNull Object from, @NotNull Object to, @NotNull Field field) + throws IllegalAccessException { + Class<?> fieldType = field.getType(); + if (fieldType.isPrimitive() || fieldType.equals(String.class)) { + field.set(to, field.get(from)); + } + else { + throw new RuntimeException("Field '" + field.getName()+"' not copied: unsupported type: "+field.getType()); + } + } + + private static boolean isPublic(final Field field) { + return (field.getModifiers() & Modifier.PUBLIC) != 0; + } + + private static boolean isFinal(final Field field) { + return (field.getModifiers() & Modifier.FINAL) != 0; + } + private static class MySecurityManager extends SecurityManager { private static final MySecurityManager INSTANCE = new MySecurityManager(); |