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Merge pull request #2 from Jayeshecs/data-type-support
Added abstract implementation for filterable dashboard
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...base/src/main/java/domainapp/modules/base/view/dashboard/AbstractFilterableDashboard.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| /** | ||
| * | ||
| */ | ||
| package domainapp.modules.base.view.dashboard; | ||
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| import java.util.Arrays; | ||
| import java.util.Base64; | ||
| import java.util.List; | ||
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| import org.apache.isis.applib.ViewModel; | ||
| import org.apache.isis.applib.annotation.Programmatic; | ||
| import org.apache.isis.applib.annotation.PropertyLayout; | ||
| import org.apache.isis.applib.annotation.Where; | ||
| import org.apache.isis.applib.services.hint.HintStore.HintIdProvider; | ||
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| import com.google.gson.Gson; | ||
| import com.google.gson.GsonBuilder; | ||
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| import domainapp.modules.base.datatype.DataTypeUtil; | ||
| import domainapp.modules.base.service.SessionStoreFactory; | ||
| import domainapp.modules.base.view.GenericFilter; | ||
| import domainapp.modules.base.view.Value; | ||
| import lombok.Getter; | ||
| import lombok.Setter; | ||
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| /** | ||
| * @author Prajapati | ||
| * | ||
| */ | ||
| public abstract class AbstractFilterableDashboard implements HintIdProvider, ViewModel { | ||
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| @PropertyLayout(hidden = Where.EVERYWHERE) | ||
| @Getter @Setter | ||
| protected GenericFilter filter; | ||
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| protected AbstractFilterableDashboard() { | ||
| // DO NOTHING | ||
| } | ||
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| /** | ||
| * @return | ||
| */ | ||
| private String getFilterAttribute() { | ||
| return "filter_" + getClass().getSimpleName(); | ||
| } | ||
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| protected abstract GenericFilter defaultFilter(); | ||
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| /** | ||
| * @return | ||
| */ | ||
| @Programmatic | ||
| private String filterToJson() { | ||
| if (getFilter() == null) { | ||
| setFilter(defaultFilter()); | ||
| } | ||
| String json = createGsonBuilder().toJson(getFilter()); | ||
| return Base64.getUrlEncoder().encodeToString(json.getBytes()); | ||
| } | ||
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| /** | ||
| * @param jsonUrlEncoded | ||
| * @return | ||
| */ | ||
| @Programmatic | ||
| private GenericFilter jsonToFilter(String jsonUrlEncoded) { | ||
| String json = new String(Base64.getUrlDecoder().decode(jsonUrlEncoded.getBytes())); | ||
| GenericFilter genericFilter = createGsonBuilder().fromJson(json, GenericFilter.class); | ||
| return genericFilter; | ||
| } | ||
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| protected void saveFilter() { | ||
| SessionStoreFactory.INSTANCE.getSessionStore().set(getFilterAttribute(), filterToJson()); | ||
| } | ||
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| @Override | ||
| public String hintId() { | ||
| String filter = SessionStoreFactory.INSTANCE.getSessionStore().get(getFilterAttribute()); | ||
| if (filter != null) { | ||
| setFilter(jsonToFilter(filter)); | ||
| return filter; | ||
| } | ||
| return filterToJson(); | ||
| } | ||
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| @Override | ||
| public String viewModelMemento() { | ||
| String filter = SessionStoreFactory.INSTANCE.getSessionStore().get(getFilterAttribute()); | ||
| if (filter != null) { | ||
| return filter; | ||
| } | ||
| String json = filterToJson(); | ||
| return json; | ||
| } | ||
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| @Override | ||
| public void viewModelInit(String memento) { | ||
| String filter = SessionStoreFactory.INSTANCE.getSessionStore().get(getFilterAttribute()); | ||
| if (filter == null) { | ||
| filter = memento; | ||
| } | ||
| setFilter(jsonToFilter(filter)); | ||
| } | ||
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| /** | ||
| * @return | ||
| */ | ||
| private Gson createGsonBuilder() { | ||
| GsonBuilder builder = new GsonBuilder(); | ||
| builder.setPrettyPrinting(); | ||
| return builder.create(); | ||
| } | ||
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| /** | ||
| * @param key | ||
| * @return | ||
| */ | ||
| @SuppressWarnings("unchecked") | ||
| protected <T> List<T> getUserInputValueAsList(String key) { | ||
| GenericFilter filter = getFilter(); | ||
| if (filter != null) { | ||
| Value value = filter.getParameters().get(key); | ||
| if (value != null) { | ||
| Object object = DataTypeUtil.valueToObject(value); | ||
| if (object instanceof List) { | ||
| return (List<T>)object; | ||
| } | ||
| return Arrays.asList((T)object); | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
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| /** | ||
| * @param key | ||
| * @return | ||
| */ | ||
| @SuppressWarnings("unchecked") | ||
| protected <T> T getUserInputValue(String key) { | ||
| List<Object> userInputValueAsList = getUserInputValueAsList(key); | ||
| if (userInputValueAsList == null || userInputValueAsList.isEmpty()) { | ||
| return null; | ||
| } | ||
| return (T)userInputValueAsList.get(0); | ||
| } | ||
|
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| } |
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