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package org.apache.tapestry.services.impl; |
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import java.util.HashMap; |
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import java.util.Map; |
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import org.apache.hivemind.ErrorLog; |
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import org.apache.hivemind.Location; |
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import org.apache.hivemind.internal.Module; |
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import org.apache.hivemind.service.ObjectProvider; |
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import org.apache.hivemind.util.PropertyUtils; |
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import org.apache.tapestry.services.Infrastructure; |
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36 | 0 | public class InfrastructureObjectProvider implements ObjectProvider |
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{ |
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private ErrorLog _errorLog; |
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private Infrastructure _infrastructure; |
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42 | 0 | private Map _cache = new HashMap(); |
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public synchronized Object provideObject(Module contributingModule, Class propertyType, |
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String locator, Location location) |
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{ |
47 | 0 | Object result = _cache.get(locator); |
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49 | 0 | if (result == null) |
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{ |
51 | 0 | result = readProperty(locator, location); |
52 | 0 | _cache.put(locator, result); |
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} |
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55 | 0 | return result; |
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} |
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Object readProperty(String locator, Location location) |
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{ |
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try |
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{ |
62 | 0 | if (PropertyUtils.isReadable(_infrastructure, locator)) |
63 | 0 | return PropertyUtils.read(_infrastructure, locator); |
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65 | 0 | return _infrastructure.getProperty(locator); |
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} |
67 | 0 | catch (Throwable ex) |
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{ |
69 | 0 | _errorLog.error(ImplMessages.unableToReadInfrastructureProperty( |
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locator, |
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_infrastructure, |
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ex), location, ex); |
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74 | 0 | return null; |
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} |
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} |
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public void setErrorLog(ErrorLog errorLog) |
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{ |
80 | 0 | _errorLog = errorLog; |
81 | 0 | } |
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public void setInfrastructure(Infrastructure infrastructure) |
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{ |
85 | 0 | _infrastructure = infrastructure; |
86 | 0 | } |
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} |