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| package org.apache.tapestry.asset; |
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| import java.util.HashMap; |
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| import java.util.Iterator; |
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| import java.util.List; |
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| import java.util.Locale; |
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| import java.util.Map; |
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| import org.apache.hivemind.Location; |
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| import org.apache.hivemind.Resource; |
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| import org.apache.hivemind.util.Defense; |
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| import org.apache.tapestry.IAsset; |
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| public class AssetSourceImpl implements AssetSource |
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| { |
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| private Map _assetFactoryByPrefix = new HashMap(); |
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| private List _contributions; |
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| private AssetFactory _defaultAssetFactory; |
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| private AssetFactory _lookupAssetFactory; |
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| public void initializeService()
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| { |
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| Iterator i = _contributions.iterator();
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| while (i.hasNext())
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| { |
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| AssetFactoryContribution c = (AssetFactoryContribution) i.next();
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| _assetFactoryByPrefix.put(c.getPrefix(), c.getFactory());
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| } |
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| } |
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| public IAsset findAsset(Resource base, String path, Locale locale, Location location)
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| { |
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| Defense.notNull(base, "base");
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| Defense.notNull(path, "path");
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| Defense.notNull(location, "location");
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| int colonx = path.indexOf(':');
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| if (colonx < 0)
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| return _lookupAssetFactory.createAsset(base, path, locale, location);
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| String prefix = path.substring(0, colonx);
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| String truePath = path.substring(colonx + 1);
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| AssetFactory factory = (AssetFactory) _assetFactoryByPrefix.get(prefix);
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| if (factory == null)
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| { |
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| factory = _defaultAssetFactory;
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| truePath = path;
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| } |
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| if (truePath.startsWith("/"))
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| return factory.createAbsoluteAsset(truePath, locale, location);
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| return factory.createAsset(base, truePath, locale, location);
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| } |
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| public void setLookupAssetFactory(AssetFactory lookupAssetFactory)
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| { |
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| _lookupAssetFactory = lookupAssetFactory;
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| } |
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| public void setContributions(List contributions)
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| { |
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| _contributions = contributions;
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| } |
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| public void setDefaultAssetFactory(AssetFactory defaultAssetFactory)
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| { |
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| _defaultAssetFactory = defaultAssetFactory;
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| } |
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| } |