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Posted to dev@tapestry.apache.org by Andreas Andreou <an...@di.uoa.gr> on 2009/02/10 09:54:15 UTC
Re: svn commit: r742861 - in /tapestry/tapestry5/trunk: src/site/apt/
tapestry-core/src/main/java/org/apache/tapestry5/ tapestry-core/src/main/java/org/apache/tapestry5/internal/
tapestry-core/src/main/java/org/apache/tapestry5/internal/bindings/ tap
I feel there should be a better name for this. I could propose one
ExtendedAsset or VariableAsset but i dont know if more methods will
end up there... Is Asset2 meant to be directly used by users?
On Tue, Feb 10, 2009 at 8:06 AM, <hl...@apache.org> wrote:
> Author: hlship
> Date: Tue Feb 10 06:06:20 2009
> New Revision: 742861
>
> URL: http://svn.apache.org/viewvc?rev=742861&view=rev
> Log:
> Rework the recent changes to Asset to keep the Asset interface unchanged and introduce a sub-interface, Asset2.
>
> Added:
> tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/Asset2.java
> Modified:
> tapestry/tapestry5/trunk/src/site/apt/upgrade.apt
> tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/Asset.java
> tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/TapestryInternalUtils.java
> tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/bindings/AssetBinding.java
> tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/services/AbstractAsset.java
> tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/services/AssetFactory.java
> tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/services/AssetSource.java
> tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/test/TapestryTestCase.java
> tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry5/internal/TapestryInternalUtilsTest.java
>
> Modified: tapestry/tapestry5/trunk/src/site/apt/upgrade.apt
> URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/src/site/apt/upgrade.apt?rev=742861&r1=742860&r2=742861&view=diff
> ==============================================================================
> --- tapestry/tapestry5/trunk/src/site/apt/upgrade.apt (original)
> +++ tapestry/tapestry5/trunk/src/site/apt/upgrade.apt Tue Feb 10 06:06:20 2009
> @@ -45,10 +45,5 @@
> Extra public methods on module classes (methods that do not define services, contribute to services,
> or decorate or advise services) are now errors.
>
> -* Asset interface
> -
> - The {{{apidocs/org/apache/tapestry5/Asset.html}Asset}} interface has been changed incompatibly:
> - A new method, isInvariant(), has been added. This will only affect applications that have provided
> - their own implementations of Asset.
>
>
>
> Modified: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/Asset.java
> URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/Asset.java?rev=742861&r1=742860&r2=742861&view=diff
> ==============================================================================
> --- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/Asset.java (original)
> +++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/Asset.java Tue Feb 10 06:06:20 2009
> @@ -22,6 +22,9 @@
> * packaged inside JARs).
> * <p/>
> * An Asset's toString() will return the URL for the resource (the same value as {@link #toClientURL()}).
> + * <p/>
> + * Release 5.1.0.0 introduced {@link org.apache.tapestry5.Asset2}, which extends this interface with an additional
> + * method.
> */
> public interface Asset
> {
> @@ -33,9 +36,6 @@
> * and alternate implementation are encouraged to do so as well. In addition, Tapestry ensures that context and
> * classpath assets have a far-future expires header (to ensure aggresive caching by the client).
> * <p/>
> - * This value is considered <em>variant</em>; because of {@link org.apache.tapestry5.services.AssetPathConverter},
> - * it is conceivable for the return value to be different at different times, depending on how the converter changes
> - * the default path.
> */
> String toClientURL();
>
> @@ -44,15 +44,4 @@
> */
> Resource getResource();
>
> - /**
> - * Returns true if the Asset is invariant (meaning that it returns the same value from {@link #toClientURL()} at all
> - * times}. Assets that are used as binding values will be cached more aggresively by Tapestry is they are
> - * invariant.
> - *
> - * @return true if invariant
> - * @see org.apache.tapestry5.services.AssetPathConverter#isInvariant()
> - * @see Binding#isInvariant()
> - * @since 5.1.0.0
> - */
> - boolean isInvariant();
> }
>
> Added: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/Asset2.java
> URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/Asset2.java?rev=742861&view=auto
> ==============================================================================
> --- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/Asset2.java (added)
> +++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/Asset2.java Tue Feb 10 06:06:20 2009
> @@ -0,0 +1,39 @@
> +// Copyright 2009 The Apache Software Foundation
> +//
> +// 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 org.apache.tapestry5;
> +
> +/**
> + * Extension to {@link org.apache.tapestry5.Asset} that adds a method to determine if the asset is invariant or not.
> + * {@link org.apache.tapestry5.services.AssetFactory} instances should ideally return Asset2 objects, not Asset. This is
> + * only of primary interest to the {@link org.apache.tapestry5.internal.bindings.AssetBindingFactory}, as it determines
> + * the invariance of the binding from the asset (and assumes variant unless the asset object implements this
> + * interface).
> + *
> + * @see org.apache.tapestry5.services.AssetPathConverter#isInvariant()
> + * @since 5.1.0.0
> + */
> +public interface Asset2 extends Asset
> +{
> + /**
> + * Returns true if the Asset is invariant (meaning that it returns the same value from {@link Asset#toClientURL()}
> + * at all times}. Assets that are used as binding values will be cached more aggresively by Tapestry is they are
> + * invariant.
> + *
> + * @return true if invariant
> + * @see org.apache.tapestry5.services.AssetPathConverter#isInvariant()
> + * @see Binding#isInvariant()
> + */
> + boolean isInvariant();
> +}
>
> Modified: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/TapestryInternalUtils.java
> URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/TapestryInternalUtils.java?rev=742861&r1=742860&r2=742861&view=diff
> ==============================================================================
> --- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/TapestryInternalUtils.java (original)
> +++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/TapestryInternalUtils.java Tue Feb 10 06:06:20 2009
> @@ -15,10 +15,9 @@
> package org.apache.tapestry5.internal;
>
> import org.apache.commons.codec.binary.Base64;
> -import org.apache.tapestry5.OptionModel;
> -import org.apache.tapestry5.SelectModel;
> -import org.apache.tapestry5.EventContext;
> +import org.apache.tapestry5.*;
> import org.apache.tapestry5.ioc.Messages;
> +import org.apache.tapestry5.ioc.Resource;
> import org.apache.tapestry5.ioc.internal.util.CollectionFactory;
> import org.apache.tapestry5.ioc.internal.util.Defense;
> import org.apache.tapestry5.ioc.internal.util.InternalUtils;
> @@ -455,4 +454,41 @@
>
> return true;
> }
> +
> + /**
> + * Converts an Asset to an Asset2 if necessary. When actually wrapping an Asset as an Asset2, the asset is assumed
> + * to be variant (i.e., not cacheable).
> + *
> + * @since 5.1.0.0
> + */
> + public static Asset2 toAsset2(final Asset asset)
> + {
> + if (asset instanceof Asset2)
> + return (Asset2) asset;
> +
> + return new Asset2()
> + {
> + /** Returns false. */
> + public boolean isInvariant()
> + {
> + return false;
> + }
> +
> + public Resource getResource()
> + {
> + return asset.getResource();
> + }
> +
> + public String toClientURL()
> + {
> + return asset.toClientURL();
> + }
> +
> + @Override
> + public String toString()
> + {
> + return asset.toString();
> + }
> + };
> + }
> }
>
> Modified: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/bindings/AssetBinding.java
> URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/bindings/AssetBinding.java?rev=742861&r1=742860&r2=742861&view=diff
> ==============================================================================
> --- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/bindings/AssetBinding.java (original)
> +++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/bindings/AssetBinding.java Tue Feb 10 06:06:20 2009
> @@ -15,26 +15,28 @@
> package org.apache.tapestry5.internal.bindings;
>
> import org.apache.tapestry5.Asset;
> +import org.apache.tapestry5.Asset2;
> +import org.apache.tapestry5.internal.TapestryInternalUtils;
> import org.apache.tapestry5.ioc.Location;
>
> public class AssetBinding extends AbstractBinding
> {
> private final String description;
>
> - private final Asset asset;
> + private final Asset2 asset;
>
> AssetBinding(Location location, String description, Asset asset)
> {
> super(location);
>
> this.description = description;
> - this.asset = asset;
> + this.asset = TapestryInternalUtils.toAsset2(asset);
> }
>
> @Override
> public Class getBindingType()
> {
> - return Asset.class;
> + return Asset2.class;
> }
>
> public Object get()
>
> Modified: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/services/AbstractAsset.java
> URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/services/AbstractAsset.java?rev=742861&r1=742860&r2=742861&view=diff
> ==============================================================================
> --- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/services/AbstractAsset.java (original)
> +++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/internal/services/AbstractAsset.java Tue Feb 10 06:06:20 2009
> @@ -14,14 +14,14 @@
>
> package org.apache.tapestry5.internal.services;
>
> -import org.apache.tapestry5.Asset;
> +import org.apache.tapestry5.Asset2;
>
> /**
> * Base class for assets.
> *
> * @since 5.1.0.0
> */
> -public abstract class AbstractAsset implements Asset
> +public abstract class AbstractAsset implements Asset2
> {
> private final boolean invariant;
>
> @@ -35,6 +35,9 @@
> return invariant;
> }
>
> + /**
> + * Returns {@link org.apache.tapestry5.Asset#toClientURL()}.
> + */
> @Override
> public String toString()
> {
>
> Modified: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/services/AssetFactory.java
> URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/services/AssetFactory.java?rev=742861&r1=742860&r2=742861&view=diff
> ==============================================================================
> --- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/services/AssetFactory.java (original)
> +++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/services/AssetFactory.java Tue Feb 10 06:06:20 2009
> @@ -29,5 +29,13 @@
> */
> Resource getRootResource();
>
> + /**
> + * Creates an instance of an asset. Starting with 5.1.0.0, it is preferred (but not required) that the factory
> + * return an instance of {@link org.apache.tapestry5.Asset2}.
> + *
> + * @param resource a resource within this factories domain (derived from the {@linkplain #getRootResource() root
> + * resource})
> + * @return an Asset for the resource
> + */
> Asset createAsset(Resource resource);
> }
>
> Modified: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/services/AssetSource.java
> URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/services/AssetSource.java?rev=742861&r1=742860&r2=742861&view=diff
> ==============================================================================
> --- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/services/AssetSource.java (original)
> +++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/services/AssetSource.java Tue Feb 10 06:06:20 2009
> @@ -27,6 +27,9 @@
> * Assets are defined with a domain, and the domain is indicated by a prefix. The two builtin domains are "context:"
> * (for files inside the web application context) and "classpath:" for files stored on the classpath (typically, inside
> * a JAR, such as a component library).
> + * <p/>
> + * Since 5.1.0.0, is is preferred that {@link org.apache.tapestry5.services.AssetFactory#createAsset(org.apache.tapestry5.ioc.Resource)}
> + * return an instance of {@link org.apache.tapestry5.Asset2}.
> */
> @UsesMappedConfiguration(AssetFactory.class)
> public interface AssetSource
>
> Modified: tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/test/TapestryTestCase.java
> URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/test/TapestryTestCase.java?rev=742861&r1=742860&r2=742861&view=diff
> ==============================================================================
> --- tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/test/TapestryTestCase.java (original)
> +++ tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/test/TapestryTestCase.java Tue Feb 10 06:06:20 2009
> @@ -1210,4 +1210,9 @@
> {
> return newMock(ComponentRequestHandler.class);
> }
> +
> + protected final Asset2 mockAsset2()
> + {
> + return newMock(Asset2.class);
> + }
> }
>
> Modified: tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry5/internal/TapestryInternalUtilsTest.java
> URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry5/internal/TapestryInternalUtilsTest.java?rev=742861&r1=742860&r2=742861&view=diff
> ==============================================================================
> --- tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry5/internal/TapestryInternalUtilsTest.java (original)
> +++ tapestry/tapestry5/trunk/tapestry-core/src/test/java/org/apache/tapestry5/internal/TapestryInternalUtilsTest.java Tue Feb 10 06:06:20 2009
> @@ -14,11 +14,10 @@
>
> package org.apache.tapestry5.internal;
>
> -import org.apache.tapestry5.ComponentResources;
> -import org.apache.tapestry5.OptionModel;
> -import org.apache.tapestry5.SelectModel;
> +import org.apache.tapestry5.*;
> import org.apache.tapestry5.internal.test.InternalBaseTestCase;
> import org.apache.tapestry5.ioc.Messages;
> +import org.apache.tapestry5.ioc.Resource;
> import org.apache.tapestry5.ioc.internal.util.CollectionFactory;
> import org.apache.tapestry5.ioc.services.ClassFactory;
> import org.apache.tapestry5.ioc.services.PropertyAccess;
> @@ -395,4 +394,40 @@
> {
> assertEquals(TapestryInternalUtils.toBase64(input), expected);
> }
> +
> + @Test
> + public void to_asset2_no_wrapper_needed()
> + {
> + Asset2 asset2 = mockAsset2();
> +
> + replay();
> +
> + assertSame(TapestryInternalUtils.toAsset2(asset2), asset2);
> +
> + verify();
> + }
> +
> + @Test
> + public void asset_to_asset2_wrapper()
> + {
> + Asset asset = mockAsset();
> + Resource resource = mockResource();
> + String clientURL = "clientURL";
> +
> + train_toClientURL(asset, clientURL);
> +
> + expect(asset.getResource()).andReturn(resource);
> +
> + replay();
> +
> + Asset2 asset2 = TapestryInternalUtils.toAsset2(asset);
> +
> + assertFalse(asset2.isInvariant());
> +
> + assertSame(asset2.toClientURL(), clientURL);
> + assertSame(asset2.toString(), asset.toString());
> + assertSame(asset2.getResource(), resource);
> +
> + verify();
> + }
> }
>
>
>
--
Andreas Andreou - andyhot@apache.org - http://blog.andyhot.gr
Tapestry / Tacos developer
Open Source / JEE Consulting
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Re: svn commit: r742861 - in /tapestry/tapestry5/trunk: src/site/apt/
tapestry-core/src/main/java/org/apache/tapestry5/ tapestry-core/src/main/java/org/apache/tapestry5/internal/
tapestry-core/src/main/java/org/apache/tapestry5/internal/bindings/ tap
Posted by Massimo Lusetti <ml...@gmail.com>.
On Tue, Feb 10, 2009 at 6:07 PM, Kevin Menard <ni...@gmail.com> wrote:
> +1 on this. For everything they've gotten wrong, I think in this
> regard Microsoft got naming of interfaces correct. There's no
> ambiguity about the evolution of a given interface.
Well, i can adapt quite well to interfaces naming, but these all
reminds me of some wired symbols version at C time... and believe me,
it's nice!
--
Massimo
http://meridio.blogspot.com
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Re: svn commit: r742861 - in /tapestry/tapestry5/trunk: src/site/apt/
tapestry-core/src/main/java/org/apache/tapestry5/ tapestry-core/src/main/java/org/apache/tapestry5/internal/
tapestry-core/src/main/java/org/apache/tapestry5/internal/bindings/ tap
Posted by Kevin Menard <ni...@gmail.com>.
+1 on this. For everything they've gotten wrong, I think in this
regard Microsoft got naming of interfaces correct. There's no
ambiguity about the evolution of a given interface.
--
Kevin
On Tue, Feb 10, 2009 at 10:50 AM, Howard Lewis Ship <hl...@gmail.com> wrote:
> The problem with "ExtendedAsset" is that in Tapestry 5.2 I might have
> to add "SuperExtendedAsset" or something. I'd rather see Asset3!
>
> The number on the end is ugly, but reflects the evolution of the
> framework. There's also a ModuleDef2 and a ServiceDef2 now.
>
> This is the best approach to backwards compatibility.
>
> For service interfaces that are not expected to be extended by the
> user, just injected, I'm more willing to break "perfect" backwards
> compatibility and just introduce a new method. It's a judgment call.
>
>
> On Tue, Feb 10, 2009 at 1:14 AM, Massimo Lusetti <ml...@gmail.com> wrote:
>> On Tue, Feb 10, 2009 at 9:54 AM, Andreas Andreou <an...@di.uoa.gr> wrote:
>>
>>> I feel there should be a better name for this. I could propose one
>>> ExtendedAsset or VariableAsset but i dont know if more methods will
>>> end up there... Is Asset2 meant to be directly used by users?
>>
>> It's not 'internal' so i guess yes.
>>
>> --
>> Massimo
>> http://meridio.blogspot.com
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: dev-unsubscribe@tapestry.apache.org
>> For additional commands, e-mail: dev-help@tapestry.apache.org
>>
>>
>
>
>
> --
> Howard M. Lewis Ship
>
> Creator Apache Tapestry and Apache HiveMind
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: dev-help@tapestry.apache.org
>
>
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Re: svn commit: r742861 - in /tapestry/tapestry5/trunk: src/site/apt/
tapestry-core/src/main/java/org/apache/tapestry5/ tapestry-core/src/main/java/org/apache/tapestry5/internal/
tapestry-core/src/main/java/org/apache/tapestry5/internal/bindings/ tap
Posted by Howard Lewis Ship <hl...@gmail.com>.
The problem with "ExtendedAsset" is that in Tapestry 5.2 I might have
to add "SuperExtendedAsset" or something. I'd rather see Asset3!
The number on the end is ugly, but reflects the evolution of the
framework. There's also a ModuleDef2 and a ServiceDef2 now.
This is the best approach to backwards compatibility.
For service interfaces that are not expected to be extended by the
user, just injected, I'm more willing to break "perfect" backwards
compatibility and just introduce a new method. It's a judgment call.
On Tue, Feb 10, 2009 at 1:14 AM, Massimo Lusetti <ml...@gmail.com> wrote:
> On Tue, Feb 10, 2009 at 9:54 AM, Andreas Andreou <an...@di.uoa.gr> wrote:
>
>> I feel there should be a better name for this. I could propose one
>> ExtendedAsset or VariableAsset but i dont know if more methods will
>> end up there... Is Asset2 meant to be directly used by users?
>
> It's not 'internal' so i guess yes.
>
> --
> Massimo
> http://meridio.blogspot.com
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: dev-help@tapestry.apache.org
>
>
--
Howard M. Lewis Ship
Creator Apache Tapestry and Apache HiveMind
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Re: svn commit: r742861 - in /tapestry/tapestry5/trunk: src/site/apt/
tapestry-core/src/main/java/org/apache/tapestry5/ tapestry-core/src/main/java/org/apache/tapestry5/internal/
tapestry-core/src/main/java/org/apache/tapestry5/internal/bindings/ tap
Posted by Massimo Lusetti <ml...@gmail.com>.
On Tue, Feb 10, 2009 at 9:54 AM, Andreas Andreou <an...@di.uoa.gr> wrote:
> I feel there should be a better name for this. I could propose one
> ExtendedAsset or VariableAsset but i dont know if more methods will
> end up there... Is Asset2 meant to be directly used by users?
It's not 'internal' so i guess yes.
--
Massimo
http://meridio.blogspot.com
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