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Cloudinary is a cloud service that offers a solution to a web application's entire image management pipeline. Upload images to the cloud. Automatically perform smart image resizing, cropping and conversion without installing any complex software. Integrate Facebook or Twitter profile image extraction in a snap, in any dimension and style to match your websiteâs graphics requirements. Images are seamlessly delivered through a fast CDN, and much much more. This Java library allows to easily integrate with Cloudinary in Java applications.

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package com.cloudinary;

import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class StoredFile {
    protected Long version;

    protected String publicId;

    protected String format;

    protected String signature;

    protected String type = "upload";

    protected String resourceType = "image";

    private static final String IMAGE_RESOURCE_TYPE = "image";

    private static final String VIDEO_RESOURCE_TYPE = "video";

    private static final String AUTO_RESOURCE_TYPE = "auto";

    private static final Pattern PRELOADED_PATTERN = Pattern.compile("^([^\\/]+)\\/([^\\/]+)\\/v(\\d+)\\/([^#]+)#?([^\\/]+)?$");

    public Long getVersion() {
        return version;
    }

    public void setVersion(Long version) {
        this.version = version;
    }

    public String getPublicId() {
        return publicId;
    }

    public void setPublicId(String publicId) {
        this.publicId = publicId;
    }

    protected String getPublicIdForSigning() {
        return publicId + ((format != null && !format.isEmpty() && resourceType.equals("raw")) ? "." + format : "");
    }

    public String getFormat() {
        return format;
    }

    public void setFormat(String format) {
        this.format = format;
    }

    public String getSignature() {
        return signature;
    }

    public void setSignature(String signature) {
        this.signature = signature;
    }

    public String getResourceType() {
        return resourceType;
    }

    public void setResourceType(String resourceType) {
        this.resourceType = resourceType;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getPreloadedFile() {
        StringBuilder sb = new StringBuilder();
        sb.append(resourceType).append("/").append(type).append("/v").append(version).append("/").append(publicId);
        if (format != null && !format.isEmpty()) {
            sb.append(".").append(format);
        }
        if (signature != null && !signature.isEmpty()) {
            sb.append("#").append(signature);
        }
        return sb.toString();
    }

    public void setPreloadedFile(String uri) {
        if (uri.matches(PRELOADED_PATTERN.pattern())) {
            Matcher match = PRELOADED_PATTERN.matcher(uri);
            match.find();
            resourceType = match.group(1);
            type = match.group(2);
            version = Long.parseLong(match.group(3));
            String filename = match.group(4);
            if (match.groupCount() == 5)
                signature = match.group(5);
            int lastDotIndex = filename.lastIndexOf('.');
            if (lastDotIndex == -1) {
                publicId = filename;
            } else {
                publicId = filename.substring(0, lastDotIndex);
                format = filename.substring(lastDotIndex + 1);
            }
        }
    }

    public String getComputedSignature(Cloudinary cloudinary) {
        Map params = new HashMap();
        params.put("version", getVersion().toString());
        params.put("public_id", getPublicIdForSigning());
        cloudinary.signRequest(params, new HashMap());
        return params.get("signature").toString();
    }

    public boolean getIsImage() {
        return IMAGE_RESOURCE_TYPE.equals(resourceType) || AUTO_RESOURCE_TYPE.equals(resourceType);
    }

    public boolean getIsVideo() {
        return VIDEO_RESOURCE_TYPE.equals(resourceType);
    }
}