public DataSource resolve()

in commons-email2-javax/src/main/java/org/apache/commons/mail2/javax/resolver/DataSourceClassPathResolver.java [91:124]

32 lines of code
9 McCabe index (conditional complexity)


    public DataSource resolve(final String resourceLocation, final boolean isLenient) throws IOException {
        try {
            if (!isCid(resourceLocation) && !isHttpUrl(resourceLocation)) {
                final String mimeType = FileTypeMap.getDefaultFileTypeMap().getContentType(resourceLocation);
                final String resourceName = getResourceName(resourceLocation);
                try (InputStream inputStream = DataSourceClassPathResolver.class.getResourceAsStream(resourceName)) {
                    if (inputStream == null) {
                        if (isLenient) {
                            return null;
                        }
                        throw new IOException("The following class path resource was not found : " + resourceLocation);
                    }
                    final ByteArrayDataSource ds = new ByteArrayDataSource(inputStream, mimeType);
                    // EMAIL-125: set the name of the DataSource to the normalized resource URL
                    // similar to other DataSource implementations, e.g. FileDataSource, URLDataSource
                    final URL resource = DataSourceClassPathResolver.class.getResource(resourceName);
                    if (resource != null) {
                        ds.setName(resource.toString());
                    } else if (isLenient) {
                        return null;
                    } else {
                        throw new IOException("The following class path resource was not found : " + resourceName);
                    }
                    return ds;
                }
            }
            return null;
        } catch (final IOException e) {
            if (isLenient) {
                return null;
            }
            throw e;
        }
    }