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/*
* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8025113
* @author sogoel
* @summary Resource creation in nested expressions
*/
/**
* This test checks for resource creation in nested expressions.
* test1() - Create 3 resource in nested new expressions, style 1
* test2() - Create 3 resource in nested new expressions, style 2
* test3() - Create 4 resources with resources as parameters: new expression; typeid & new expression
*/
public class ResInNestedExpr {
static final int expected = 5;
static int closed = 0;
static void closing(String clazz) {
closed++;
}
static void checkClosedCount() {
if (expected != closed) {
throw new RuntimeException("Did not find enough closed resources."
+ "Expected " + expected + ", but found " + closed);
}
}
/**
* The "expected output" is each class name gotten with getSimpleName() to unclutter things.
* Each test method returns a classname of the resource and that is compared with
* values in this array.
*/
static String[] expectedOutput = {
"aResource::bResource::cResource", //test1
"aResource::bResource::cResource&aResource::cResource", //test3
"aResource::bResource::cResource&aResource::cResource"}; //test2
static void compare(String s1, String s2) {
if (s1.compareTo(s2) != 0) {
throw new RuntimeException(s1 + "!=" + s2);
}
}
String test1() {
String ret = null;
try (bResource br = new bResource(new cResource());
aResource ar = new aResource(br)) {
ret = ar.getClass().getSimpleName() + "::" +
ar.getB().getClass().getSimpleName() + "::" +
ar.getB().getC().getClass().getSimpleName();
}
return ret;
}
String test2() {
String ret = null;
try (aResource ar = new aResource(new bResource(new cResource()), new cResource())) {
String abc = ar.getClass().getSimpleName() + "::" +
ar.getB().getClass().getSimpleName() + "::" +
ar.getB().getC().getClass().getSimpleName();
String ac = ar.getClass().getSimpleName() + "::" +
ar.getC().getClass().getSimpleName();
ret = abc + "&" + ac;
}
return ret;
}
String test3() {
String ret = null;
try (bResource br = new bResource(new cResource());
aResource ar = new aResource(br, new cResource())) {
String abc = ar.getClass().getSimpleName() + "::" +
ar.getB().getClass().getSimpleName() + "::" +
ar.getB().getC().getClass().getSimpleName();
String ac = ar.getClass().getSimpleName() + "::" +
ar.getC().getClass().getSimpleName();
ret = abc + "&" + ac;
}
return ret;
}
public static void main(String... args) {
ResInNestedExpr t = new ResInNestedExpr();
int eo = 0;
compare(expectedOutput[eo++], t.test1());
compare(expectedOutput[eo++], t.test3());
compare(expectedOutput[eo++], t.test2());
ResInNestedExpr.checkClosedCount();
}
/**
* A resource to implement AutoCloseable
* Contains two other resources as data items.
*/
static class aResource implements AutoCloseable {
bResource bR;
cResource cR;
public aResource() {
bR = null;
cR = null;
}
public aResource(bResource br) {
bR = br;
}
public aResource(cResource cr) {
cR = cr;
}
public aResource(bResource br, cResource cr) {
bR = br;
cR = cr;
}
public bResource getB() {
return bR;
}
public cResource getC() {
return cR;
}
@Override
public void close() {
ResInNestedExpr.closing(this.getClass().getName());
}
}
/**
* A resource to implement AutoCloseable
* Contains one other resources as a data item.
*/
static class bResource implements AutoCloseable {
cResource cR;
public bResource() {
cR = null;
}
public bResource(cResource cr) {
cR = cr;
}
public cResource getC() {
return cR;
}
@Override
public void close() {
ResInNestedExpr.closing(this.getClass().getName());
}
}
/** A resource to implement AutoCloseable */
static class cResource implements AutoCloseable {
public cResource() {
}
@Override
public void close() {
ResInNestedExpr.closing(this.getClass().getName());
}
}
}
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