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feat: add support for multipart downloading of a translated file to F…
…iles API (#104) feat: add support for multipart downloading of a translated file to File API
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10 changes: 10 additions & 0 deletions
10
...les-api/src/main/java/com/smartling/api/files/v2/resteasy/ext/TranslatedFileMetadata.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package com.smartling.api.files.v2.resteasy.ext; | ||
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| import lombok.Data; | ||
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| @Data | ||
| public class TranslatedFileMetadata | ||
| { | ||
| // Now we leave the class empty and will use it as an end marker for the file body only. | ||
| // In the future we will expand this object with additional metadata associated with the downloaded file. | ||
| } |
29 changes: 29 additions & 0 deletions
29
...es-api/src/main/java/com/smartling/api/files/v2/resteasy/ext/TranslatedFileMultipart.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| package com.smartling.api.files.v2.resteasy.ext; | ||
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| import lombok.Getter; | ||
| import org.apache.commons.io.IOUtils; | ||
| import org.jboss.resteasy.plugins.providers.multipart.MultipartInput; | ||
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| import javax.ws.rs.core.MediaType; | ||
| import javax.ws.rs.core.MultivaluedMap; | ||
| import java.io.InputStream; | ||
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| public class TranslatedFileMultipart | ||
| { | ||
| @Getter | ||
| InputStream fileBody; | ||
| @Getter | ||
| MultivaluedMap<String, String> fileHeaders; | ||
| @Getter | ||
| MediaType fileMediaType; | ||
| @Getter | ||
| TranslatedFileMetadata translatedFileMetadata; | ||
| MultipartInput multipartInput; | ||
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| public void close() | ||
| { | ||
| IOUtils.closeQuietly(fileBody); | ||
| if (null != multipartInput) | ||
| multipartInput.close(); | ||
| } | ||
| } |
72 changes: 72 additions & 0 deletions
72
.../src/main/java/com/smartling/api/files/v2/resteasy/ext/TranslatedFileMultipartReader.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| package com.smartling.api.files.v2.resteasy.ext; | ||
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| import org.apache.commons.lang3.StringUtils; | ||
| import org.jboss.resteasy.plugins.providers.multipart.InputPart; | ||
| import org.jboss.resteasy.plugins.providers.multipart.MultipartInputImpl; | ||
| import org.jboss.resteasy.plugins.providers.multipart.i18n.Messages; | ||
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| import javax.ws.rs.Consumes; | ||
| import javax.ws.rs.WebApplicationException; | ||
| import javax.ws.rs.core.Context; | ||
| import javax.ws.rs.core.MediaType; | ||
| import javax.ws.rs.core.MultivaluedMap; | ||
| import javax.ws.rs.ext.MessageBodyReader; | ||
| import javax.ws.rs.ext.Provider; | ||
| import javax.ws.rs.ext.Providers; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.lang.annotation.Annotation; | ||
| import java.lang.reflect.Type; | ||
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| import static java.lang.String.format; | ||
| import static org.jboss.resteasy.plugins.providers.multipart.MultipartConstants.MULTIPART_MIXED; | ||
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| @Provider | ||
| @Consumes(MULTIPART_MIXED) | ||
| public class TranslatedFileMultipartReader implements MessageBodyReader<TranslatedFileMultipart> | ||
| { | ||
| private static final String BOUNDARY_PARAMETER = "boundary"; | ||
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| protected @Context Providers workers; | ||
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| @Override | ||
| public boolean isReadable(Class<?> clazz, Type type, Annotation[] annotations, MediaType mediaType) | ||
| { | ||
| return type.equals(TranslatedFileMultipart.class); | ||
| } | ||
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| @Override | ||
| public TranslatedFileMultipart readFrom(Class<TranslatedFileMultipart> clazz, Type type, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, String> multivaluedMap, InputStream inputStream) throws IOException, WebApplicationException | ||
| { | ||
| final String boundary = mediaType.getParameters().get(BOUNDARY_PARAMETER); | ||
| if (null == boundary) | ||
| throw new IOException(Messages.MESSAGES.unableToGetBoundary()); | ||
| final MultipartInputImpl multipartInput = new MultipartInputImpl(mediaType, workers); | ||
| multipartInput.parse(inputStream); | ||
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| if (multipartInput.getParts().size() != 2) | ||
| throw new IOException(format("The response contains unexpected number of parts (%d). Two parts are expected. The first one is file's body, the second one is metadata object.", multipartInput.getParts().size())); | ||
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| final InputPart filePart = multipartInput.getParts().get(0); | ||
| final InputPart metadataPart = multipartInput.getParts().get(1); | ||
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| final TranslatedFileMultipart translatedFileMultipart = new TranslatedFileMultipart(); | ||
| translatedFileMultipart.multipartInput = multipartInput; | ||
| translatedFileMultipart.fileBody = filePart.getBody(InputStream.class, null); | ||
| translatedFileMultipart.fileHeaders = filePart.getHeaders(); | ||
| translatedFileMultipart.fileMediaType = filePart.getMediaType(); | ||
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| final MediaType metadataPartMediaType = metadataPart.getMediaType(); | ||
| if (null == metadataPartMediaType) | ||
| throw new IOException("Missing content type of metadata part."); | ||
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| if (!StringUtils.equalsIgnoreCase(MediaType.APPLICATION_JSON_TYPE.getType(), metadataPartMediaType.getType()) || !StringUtils.equalsIgnoreCase(MediaType.APPLICATION_JSON_TYPE.getSubtype(), metadataPartMediaType.getSubtype())) | ||
| throw new IOException(format("Unexpected content type of metadata part (%s). Expected (%s) metadata part.", metadataPart.getMediaType(), MediaType.APPLICATION_JSON_TYPE)); | ||
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| translatedFileMultipart.translatedFileMetadata = metadataPart.getBody(TranslatedFileMetadata.class, TranslatedFileMetadata.class); | ||
| if (null == translatedFileMultipart.translatedFileMetadata) | ||
| throw new IOException("Cannot construct metadata json object."); | ||
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| return translatedFileMultipart; | ||
| } | ||
| } |
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