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This OSGi bundle wraps ${pkgArtifactId} ${pkgVersion} jar file.
/*
* Copyright 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package java.lang;
import static javaemul.internal.InternalPreconditions.checkArrayType;
import static javaemul.internal.InternalPreconditions.checkNotNull;
import static javaemul.internal.InternalPreconditions.isTypeChecked;
import java.io.PrintStream;
import javaemul.internal.ArrayHelper;
import javaemul.internal.HashCodes;
import javaemul.internal.JsUtils;
import jsinterop.annotations.JsMethod;
/**
* General-purpose low-level utility methods. GWT only supports a limited subset
* of these methods due to browser limitations. Only the documented methods are
* available.
*/
public final class System {
/**
* Does nothing in web mode. To get output in web mode, subclass PrintStream
* and call {@link #setErr(PrintStream)}.
*/
public static PrintStream err = new PrintStream(null);
/**
* Does nothing in web mode. To get output in web mode, subclass
* {@link PrintStream} and call {@link #setOut(PrintStream)}.
*/
public static PrintStream out = new PrintStream(null);
public static void arraycopy(Object src, int srcOfs, Object dest, int destOfs, int len) {
checkNotNull(src, "src");
checkNotNull(dest, "dest");
Class srcType = src.getClass();
Class destType = dest.getClass();
checkArrayType(srcType.isArray(), "srcType is not an array");
checkArrayType(destType.isArray(), "destType is not an array");
Class srcComp = srcType.getComponentType();
Class destComp = destType.getComponentType();
checkArrayType(arrayTypeMatch(srcComp, destComp), "Array types don't match");
int srclen = ArrayHelper.getLength(src);
int destlen = ArrayHelper.getLength(dest);
if (srcOfs < 0 || destOfs < 0 || len < 0 || srcOfs + len > srclen || destOfs + len > destlen) {
throw new IndexOutOfBoundsException();
}
/*
* If the arrays are not references or if they are exactly the same type, we
* can copy them in native code for speed. Otherwise, we have to copy them
* in Java so we get appropriate errors.
*/
if (isTypeChecked() && !srcComp.isPrimitive() && !srcType.equals(destType)) {
// copy in Java to make sure we get ArrayStoreExceptions if the values
// aren't compatible
Object[] srcArray = (Object[]) src;
Object[] destArray = (Object[]) dest;
if (src == dest && srcOfs < destOfs) {
// TODO(jat): how does backward copies handle failures in the middle?
// copy backwards to avoid destructive copies
srcOfs += len;
for (int destEnd = destOfs + len; destEnd-- > destOfs;) {
destArray[destEnd] = srcArray[--srcOfs];
}
} else {
for (int destEnd = destOfs + len; destOfs < destEnd;) {
destArray[destOfs++] = srcArray[srcOfs++];
}
}
} else if (len > 0) {
ArrayHelper.copy(src, srcOfs, dest, destOfs, len);
}
}
public static long currentTimeMillis() {
return (long) JsUtils.getTime();
}
/**
* Has no effect; just here for source compatibility.
*
* @skip
*/
public static void gc() {
}
/**
* The compiler replaces getProperty by the actual value of the property.
*/
@JsMethod(name = "$getDefine", namespace = "nativebootstrap.Util")
public static native String getProperty(String key);
/**
* The compiler replaces getProperty by the actual value of the property.
*/
@JsMethod(name = "$getDefine", namespace = "nativebootstrap.Util")
public static native String getProperty(String key, String def);
public static int identityHashCode(Object o) {
return HashCodes.getIdentityHashCode(o);
}
public static void setErr(PrintStream err) {
System.err = err;
}
public static void setOut(PrintStream out) {
System.out = out;
}
private static boolean arrayTypeMatch(Class srcComp, Class destComp) {
if (srcComp.isPrimitive()) {
return srcComp.equals(destComp);
} else {
return !destComp.isPrimitive();
}
}
}