com.bumptech.glide.load.model.stream
Class BaseGlideUrlLoader<T>

java.lang.Object
  com.bumptech.glide.load.model.stream.BaseGlideUrlLoader<T>

Type Parameters:

T - The type of the model.

All Implemented Interfaces:

ModelLoader<T,InputStream>, StreamModelLoader<T>

public abstract class BaseGlideUrlLoader<T>
extends Object
implements StreamModelLoader<T>

A base class for loading images over http/https. Can be subclassed for use with any model that can be translated in to InputStream data.

Constructor Summary

BaseGlideUrlLoader(Context context)

BaseGlideUrlLoader(Context context, ModelCache<T,GlideUrl> modelCache)

BaseGlideUrlLoader(ModelLoader<GlideUrl,InputStream> concreteLoader)

BaseGlideUrlLoader(ModelLoader<GlideUrl,InputStream> concreteLoader, ModelCache<T,GlideUrl> modelCache)

Method Summary

protected Headers	getHeaders(T model, int width, int height) Get the headers for the given model and dimensions as a map of strings to sets of strings.
DataFetcher<InputStream>	getResourceFetcher(T model, int width, int height) Obtains an DataFetcher that can fetch the data required to decode the resource represented by this model.
protected abstract String	getUrl(T model, int width, int height) Get a valid url http:// or https:// for the given model and dimensions as a string.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BaseGlideUrlLoader

public BaseGlideUrlLoader(Context context)

BaseGlideUrlLoader

public BaseGlideUrlLoader(Context context,
                          ModelCache<T,GlideUrl> modelCache)

BaseGlideUrlLoader

public BaseGlideUrlLoader(ModelLoader<GlideUrl,InputStream> concreteLoader)

BaseGlideUrlLoader

public BaseGlideUrlLoader(ModelLoader<GlideUrl,InputStream> concreteLoader,
                          ModelCache<T,GlideUrl> modelCache)

Method Detail

getResourceFetcher

public DataFetcher<InputStream> getResourceFetcher(T model,
                                                   int width,
                                                   int height)

Description copied from interface: ModelLoader

Obtains an DataFetcher that can fetch the data required to decode the resource represented by this model. The DataFetcher will not be used if the resource is already cached.

Note - If no valid data fetcher can be returned (for example if a model has a null URL), then it is acceptable to return a null data fetcher from this method. Doing so will be treated any other failure or exception during the load process.

Specified by:

getResourceFetcher in interface ModelLoader<T,InputStream>

Parameters:

model - The model representing the resource.

width - The width in pixels of the view or target the resource will be loaded into, or Target.SIZE_ORIGINAL to indicate that the resource should be loaded at its original width.

height - The height in pixels of the view or target the resource will be loaded into, or Target.SIZE_ORIGINAL to indicate that the resource should be loaded at its original height.

Returns:

A DataFetcher that can obtain the data the resource can be decoded from if the resource is not cached, or null if no valid DataFetcher could be constructed.

getUrl

protected abstract String getUrl(T model,
                                 int width,
                                 int height)

Get a valid url http:// or https:// for the given model and dimensions as a string.

Parameters:

model - The model.

width - The width in pixels of the view/target the image will be loaded into.

height - The height in pixels of the view/target the image will be loaded into.

Returns:

The String url.

getHeaders

protected Headers getHeaders(T model,
                             int width,
                             int height)

Get the headers for the given model and dimensions as a map of strings to sets of strings.

Parameters:

model - The model.

width - The width in pixels of the view/target the image will be loaded into.

height - The height in pixels of the view/target the image will be loaded into.

Returns:

The Headers object containing the headers, or null if no headers should be added.