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package com.bumptech.glide.provider;
import com.bumptech.glide.DataLoadProvider;
import java.util.HashMap;
import java.util.Map;
public class DataLoadProviderFactory {
private static final MultiClassKey GET_KEY = new MultiClassKey();
private static class MultiClassKey {
private Class dataClass;
private Class resourceClass;
public MultiClassKey() { }
public MultiClassKey(Class dataClass, Class resourceClass) {
this.dataClass = dataClass;
this.resourceClass = resourceClass;
}
@Override
public String toString() {
return "MultiClassKey{" +
"dataClass=" + dataClass +
", resourceClass=" + resourceClass +
'}';
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
MultiClassKey that = (MultiClassKey) o;
if (!dataClass.equals(that.dataClass)) {
return false;
}
if (!resourceClass.equals(that.resourceClass)) {
return false;
}
return true;
}
@Override
public int hashCode() {
int result = dataClass.hashCode();
result = 31 * result + resourceClass.hashCode();
return result;
}
public void set(Class dataClass, Class resourceClass) {
this.dataClass = dataClass;
this.resourceClass = resourceClass;
}
}
private final Map<MultiClassKey, DataLoadProvider> providers = new HashMap<MultiClassKey, DataLoadProvider>();
public <T, Z> void register(Class<T> dataClass, Class<Z> resourceClass, DataLoadProvider provider) {
providers.put(new MultiClassKey(dataClass, resourceClass), provider);
}
@SuppressWarnings("unchecked")
public <T, Z> DataLoadProvider<T, Z> get(Class<T> dataClass, Class<Z> resourceClass) {
GET_KEY.set(dataClass, resourceClass);
DataLoadProvider<T, Z> result = providers.get(GET_KEY);
if (result == null) {
result = EmptyDataLoadProvider.get();
}
return result;
}
}
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